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1. ERN 59 7 5 Edit Message viii ore ee E ERE A ERE E RR t 60 7 6 c 61 Configuring the System essen nnne rnnt nnns 62 8 1 Button operations arses teer nO x de E CEPR EUER a een aas 63 8 2 Description oef ODtiols e D Reto DR ORE E EE 65 8 2 1 Page 1 LENS amp DATA MANIPULATION 1 seen 65 8 2 2 Page 2 LENS amp DATA MANIPULATION 2 seen 67 8 2 3 Page 3 TEST amp DATA MANIPULATION 1 seen 68 8 24 Page 4 TEST amp DATA MANIPULATION 2 eee 70 8 2 5 Page 5 TEST ENVIRONMENT eee cece eene tenet 72 8 2 6 Page 6 PRINT OPTION croce tes at sphere eder ende He na len 74 Editing User Designable Program amp Test seeeeeeenenn 76 9 1 Editing User Designable Program seeeeeeeneemen 76 9 2 Editing User Designable Unit Test esessssseeeeneneen eene 87 10 Editing Messages neci eine dete esent neces 94 TOs Introduction terne n te e tiere etae 94 10 2 How to Use Virtual Keyboard ssssseeeeeem emen 95 10 3 Editing Program Name ino TEN E E EE vi 99 104a 4Editing Test Name e EDU REESE UE 100 10 5 Editing Guide Message pie aes eeii nennen nennen enne 101 10 6 Editing Shop Name is emn Eu RT RUD EE 103 11 Examination Modes esssessesseseeeeeeeen ennt tns tnn tn senate sins th anna 104
2. 00 31 9Ca 12 um o3 SE 12 fa 32 SS 01 ss 25 N aw N aco RETINO 1 Far Near Vision Mode button Changes the visual mode between the far and near The heads of the digital refractor will be converged mechanically and turn on near chart illumination in case of the near working distance 2 Buttons for Main Data Items S Spherical power R L OU C Cylindrical Power R L OU 43 A Cylinder Axis R L OU ADD Additional Power R L OU VA Visual Acuity R L OU BIBO Horizontal Prism R L OU BDBU Vertical Prism R L OU To change between ADD mode and Prism mode press ADD BIBO or BDBU button of the keypad If press the im button of the touch screen appear A button and can t ress buttons of the Main data item Press again A button then change button and can use buttons of the Main data item This function is useful when explaining to customer with pointer at the screen 3 Mode Selection Buttons Changes mode by pressing the following buttons LM LM mode RK RK mode SUBJ SUBJ Subjective mode FIN final prescription mode f you want to know the RK data during the subjective refraction Without use a sheet of paper and a pencil at your hand or printout inconveniently just press the RK button and change into RK mode then you can check the RK data with ease and convenient manner If press the im button of the touch screen appear A b
3. a 1041n0 aamua wai 72NYvd NOLLVHSdO YS Aus v2 A indio Re econm nena AGOS HOI1OVH43H XOS NOIL NNF gt gt 4 n e z Z m a o 2 ve vr og 2 s n z Z m Fi B 2 ee 5 5 2 1 Detail Explanation D Connector for Digital Refractor Port to connect the Junction Box to the Digital Refractor Connector for Operation Panel Port to connect the Junction Box to the Operation Panel 9 Connector for Local System CAN based instrument or terminator e Port to connect the Junction Box to a chart Presenting device for example CCP or CDC by LUXVISION e Port to connect the Junction Box to PC Connector for Local System Serial based instrument e Port to directly connect the Junction Box for auto ref keratometer auto lensmeter or external computer PC 24 Connector for Global System network CAN based instrument Port to connect the Local system to Global system network e Port to connect a terminator for termination Switch for Input Power Voltage Switch for Power On Off Power Adapter Cable Inlet c e 5 3 Operation Panel OP Operation Panel plays an important role as a brain that controls all the devices centrally It is able to control Digital Refractor the communication from RK auto ref keratometer LM auto lensmeter and or PC 5 3 1 G G 25 Detail Explanation Front side LCD displ
4. After pressing the R button If the left side red is seen more clearly turn the dial clockwise direction If the right side green is seen more clearly turn the dial counterclockwise direction 163 After pressing the L button If the left side red is seen more clearly turn the dial clockwise direction If the right side green is seen more clearly turn the dial counterclockwise direction Adjust the binocular balance after the right and left maximum corrected monocular SPH values are balanced If the upper row is seen more clearly turn the dial counterclockwise after pressing R button to increase right SPH value If the lower row is seen more clearly turn the dial counterclockwise after pressing L button to increase left SPH value Repeat this process until the whole sections are seen uniformly 0 00 0 00 0 A 0 00 sBi lt Bo 0 00 sptsu SYSTEM1 O90 0 5 ooo o6 009 0 7 awa uao am 0 7 EE 253 EET EJ PF 30 RETINO 164 13 20 Worth 4 Dots Test Objective To find suppression during the subjective test It is possible to check the internal or external phoria Chart Worth 4 Dots chart Auxiliary Lens Red Filter right Green Filter left Expectation To check how many dots can be seen Normally 4 points are seen Operation Sequence 1 To enter this mode press the Worth 4 Dots Chat Alternately press the TEST button and then select Worth
5. CUSTOM G CANCEL 10 2 How to Use Virtual Keyboard You can edit message by pressing the button on the virtual keyboard The virtual keyboard is composed of SAVE EXIT button Message area and Keyboard buttons You can rewrite the message by using the virtual keyboard buttons as shown at the Figure Next figure shows the keys for rewriting the message 96 1 2 EDIT MESSAGE PROGRAM NAME SAVE D EXIT Backspace Shift Shift Ji Caps Lock j x Return CANCEL When you press the key on the virtual keyboard the characters display on the Message area If the last character is reached in the end of Message area the control panel warns you using beep sound If you want to write capital press Caps Lock button or Shift button then virtual keyboard changes to capital In addition you can erase the message by using Backspace or Del button Backspace button has a function what delete previous character from current cursor Del button delete the character on the cursor position and the remaining characters remove before one by one You can move the cursor in the Message area by using the arrow buttons Press SAVE button to save and press EXIT button to exit It is identical with keyboard instructions It will be convenient to the user Caps Lock Shift Caps Lock Shift In addition you can also use Keypad buttons f SAVE exit Bac
6. Fog Balance 0 00 D EDIT M Fog Red Green 0 00 D GALLERY Startup Mode EMPTY SUBJ Startup LH CANCEL 11 4 Measuring Near and Far Vision When we say optometry it almost means far vision In the old days there were so many hyperopia far sightedness problems but recently according to the development of media such as TV or computer which drives one s eyes very hard myopia near sightedness is getting more and more prevalent From here we mostly assume far vision however there is only one exception additional spherical power specially in case of presbyopia which requires near vision test LDR 7800 system is designed to measure both near and far vision If the FAR or NEAR button of the touch screen or ADD button is pressed changing mode and tilting by Digital Refractor for measuring near vision occur automatically In case of near vision it is expected that the age and the ordinary near working distance of the 112 patient are to set exactly because personal correction should be made by both of them The near working distance is the ordinary distance for reading books and the age determines the flexibility of the crystalline Entering near working distance mode by the FAR or NEAR button of the touch screen and doing so by the ADD button make some difference This changes into near mode thoroughly and that only imitates mode for adjusting the feature it will be recommended that using the ADD button to e
7. If Aux Lenses is selected by lens touch button of the touch screen without changing the current state auxiliary lenses can be placed in the right left eyes Remind that if there is any other auxiliary lens inserted previously it is replaced with a newly selected auxiliary lens without notice If you want to replace the Aux Lenses press the Lens button of the Main touch screen Then appear Aux Lenses dialogbox There is two types of the Right Left Aux Lenses If you press the lens that wants to replace in the dialogbox will be replace Aux lens K E L 0 00 s 0 00 0 00 c 0 00 Aux Lens RIGHT XA ME 208 23 ee coo noe 0088 00 oc ois OO o3 9Cco um o3 CANCEL There is a specific case that two lenses are appeared in one line at the same time when choosing lenses This is not a fault but a special automatic function provided by the system which helps to select the right left lenses for user s convenience If you select the Polarized Red Green or PD Check lens the right and left lenses will be simultaneously placed On the other hand lens selection might be limited according to the right and left eyes by the system features 10ABI Vertical Maddox and Red Filter can be placed exclusively in the right eye but 6ABU Horizontal Maddox and Green Filter in 46 the left eye only The others can match for both eyes Table 1 shows auxiliary lenses usable with LDR 7800 system P H 3 5 5 1
8. Interface Cable 24 pin DVI Screw Bolt Bolt Cover Spare Printing Paper Interface Cable 15 pin D SUB Spare Fuse Power Cord Interface Cable 4 pin CAN User Manual Interface Cable 9 pin D SUB 203 18 2 Optional interface Package e Auto Ref Keratormeter Package RK type Converter Box 1 EA Interface Cable 4 pin CAN 1 EA Interface Cable 9 pin D SUB 1 EA Power Adaptor 1 EA Terminator 1 EA Auto Lensmeter Package LM type Converter Box 1 EA Interface Cable 4 pin CAN 1 EA Interface Cable 9 pin D SUB 1 EA Power Adaptor 1 EA Terminator 1 EA PC Package PC type Converter Box 1 EA Interface Cable 4 pin CAN 1 EA Interface Cable 9 pin D SUB 1 EA Power Adaptor 1 EA Terminator 1 EA 204 19 Service Information If the instrument appears malfunctioning before calling a customer service it is highly recommended to check the instrument according to the troubleshooting procedure in section 16 of this manual If any problem persists or the instrument is damaged or malfunctioning contact LUXVISION or local distributor for service with the following information m Name of the instrument LDR 7800 system m Serial number of the instrument refer to the 10 digit number on its product label or name plate m Descriptions of Problem in detail Date of Purchase Dealer s Name Dealer Address Dealer Phone No Model No Serial No LUXVISION recommends customers to
9. LDR 7800 DIGITAL REFRACTOR User s Manual C LUXVISION IMPORTANT NOTICE This product may malfunction due to electromagnetic waves caused by portable personal telephones transceivers radio controlled toys etc Be sure to avoid having objects such as which affect this product brought near the product The information in this publication has been carefully checked and is believed to be entirely accurate at the time of publication LUXVISION assumes no responsibility however for possible errors or omissions or for any consequences resulting from the use of the information contained herein LUXVISION reserves the right to make changes in its products or product specifications at any time and without prior notice and is not required to update this documentation to reflect such changes Ver 1 0 0120 All rights are reserved Under copyright laws this manual may not be copied in whole or in part without the prior written consent of LUXVISION CONTENTS 1 Introduction neut enar en ch vec chan du ceyeeres tdeh EA 8 1 1 O tlin of the Instrument nies e en e eR eet e 8 1 2 lassifiCatiOEi enne t a dl nte cde e M at 9 2 Safety Informati n saiia ient ierit aa aiai aS 10 2 1 IxtEoductlOh e a So et 10 2 2 Safety Symbols en ten i deese a ie eee e t i n 11 2 3 Environment Factors dedere EX pde nente ipe debe piene rk r a pne En 12 24 Safety Precautioni
10. PG UP CANCEL Because of the long length of the guide message the LDR 7800 system provides the function to copy and paste the message Press SYSTEM button of the touch screen in Guide Message editing mode to open the list of the system test guide message 102 Choose the test guide message you need and press COPY button of the touch screen to copy the message Return to the test guide list by pressing CUSTOM button of the touch screen Select the guide message you want to edit Paste the message by pressing SHIFT and PASTE button of the touch screen at the same time Press the test guide or Press EDIT button to start the editing 1 8 EDIT MESSAGE GUIDE MESSAGE SYSTEM PROGRAM NAME TEST NAME GUIDE MESSAGE SHOP NAME CYL TEST RESULT Which line is clearer than others EM CONF IG AXS Which line is clearer than others EDIT PROGRAM EDIT TEST Which numbers are clearer on the green or red EDIT MESSAGE GALLERY CYL Which figure is clearer Wor 27 SYSTEM CUSTOM PG UP CANCEL ERASE PASTE When you press SHIFT and ERASE in the Test Guide menu you can delete the whole message 103 10 6 Editing Shop Name You can print the prescription data including your shop name or telephone number Press MENU and select Edit Message and Shop Name to write the printer footer You can write maximum 72 characters in three rows Press SAVE button of the virtual keyboard to save the me
11. Power Supply 29 00 26 75D Regular 19 00 16 75D During XC or prism tests 0 12 0 25 0 5 1 2 3 4D increments 0 00 8 75D 0 25 0 5 1 2 3D increments 0 180 1 5 15 increments 48 80mm 0 5 1mm increments Near PD 50 74mm Near Working Distance 35 70cm 0 20A 0 1 0 2 0 5 1 2 increments 0 25D 0 50D 0 25D prism split lens Dual Cross Cylinder 1 5D 2 0D Measurement Distance 67cm 50cm 361 W X 108 D X 280 H mm 4 74kg 216 W X 246 D X 225 H mm 1 89kg including internal printer 251 W X 240 D X 71 H mm 1 88kg Digital Refractor 9V 2A 17V 75A 201 Operation Panel 9V 71A 12V 7T 2A 5V 3A Junction Box 100 120 200 240 V 0 7 0 5A 50 60Hz Auxiliary Lenses Occluding Aperture Pinhole Lens 2mm Maddox Rod Right Eye Red Horizontal Left eye Red Vertical Red Green Filter Right Eye Red Left Eye Green Polarizing Filter Right Eye 135 45 Left Eye 45 135 Split dissociation Prism Right Eye 6A BU Left Eye 10A BI up to 5A complement PD Check Lens Fixed XC Lens 0 50D with the axis fixed at 90 Visual Field 40 VD 12mm 202 18 Components And Options 18 1 Standard Package Components Refractor Body LDR 7800 Digital Refractor Operation Panel LDR 7800 Digital Refractor OP Junction Box LDR 7800 Digital Refractor JB Forehead Rest Face Shield Near Point Card Near Point Rod Dust Cover
12. 11 1 Why Examination Mode is Important sesseeenene 106 11 1 1 Sceriarto i dt screen bout seh bd eie ober Loco deitas 106 11 2 Data Duplication ssssssseseeeeeenneeneeeenen nemen nennen enne 109 11 3 Warnings on Mode i e eerte eie esi ei er RE Pe eg 110 11 4 Measuring Near and Far Vision sssssseeeeneneem emen 111 11 5 Other Temporal Examination Modes seseeee eee 114 11 5 1 PRESET Modei siese usoa a ae N E Ee AE A EAE qM ED E 114 11 52 AUX OFF Mode cisini pneter e tede rer dea 116 11 53 ADDJOFF Mode iode t ed e ent cutie ru a EH oon 116 11 5 4 PRISM OFF Mode 1 hc rt cp tbe Eg Ania arin b dee 117 12 Standard Program amp Functions esee 118 12 1 Starting the System Providing STANDARD Program eee 118 12 1 1 Adjustment of the SPH CYL AXIS Values for Right Eye sssss 120 12 1 2 Jackson Cross Cylinder Test AXIS for Right Eye sssr 121 12 1 3 Jackson Cross Cylinder Test CYL for Right Eye 122 12 1 4 Red Green Test for Right Eye 123 12 1 5 Checking The Visual Acuity for Right Eye 124 12 1 6 Adjustment of the SPH CYL AXIS Values for Left Eye 124 12 1 7 Jackson Cross Cylinder Test AXIS for Left Eye 125 12 1 8 Jackson Cross Cylinder Test CYL for Left Eye 125 12 1 9 Red Green Test for Left Eye sesssssssssssssesseeneeneeneee nennen 125 12 1 10 Chec
13. 2EA as spare Q Interface cable 1EA OP e JB 15 pin D SUB Accessories for Junction Box Power Cord 1EA Primary and secondary spare fuse 2EA 250V T5AL 5 Interface Cable 1EA JB Chart Device 4 pin CAN Interface Cable 1EA JB RK or LM 9 pin D SUB 29 5 4 3 Optional accessories D Convert Box for Auto Ref Keratometer 2 Convert Box for Auto Lensmeter Convert Box for PC Terminator Interface Cables for a Converter Box i LM RK PC lt gt Converter Box 9 pin D SUB 2m ii Junction Box or Converter Box lt gt Converter Box 4 pin CAN 3 6 10 20 m Power Adaptor for Converter Box DC 9V Pd For Wa compliant version use only with Ault Inc model SW171 series power supply It is needed only when the external instrument does NOT supply power through the RS232 interface 30 5 5 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 System Installation Check the instruments and its accessories listed in 5 4 and prepare them for installation Connect the Digital Refractor to the Junction Box JB with 24 pin DVI interface cable Be sure not to connect or disconnect instruments to the junction Box while the power is on Connect the Operation Panel OP to the Junction box with 15 pin D SUB interface cable in the 15 pin connector If the terminator is connect it to the 4 pin connector named Terminator of the Junction box Connect chart pre
14. 32 AXS 0 IRI RD LI 778 mm 7 70 43 37 D 4375 122 AXS 90 Test Time Test Time A AN alan een Ln 191 As we stated before normally you don t have to print so many results like the previous sample Thus remove the unessential options in system configuration Enter page 6 PRINT OPTION in system configuration menu to turn on and off the following options as your needs Print Subjective assigns the item to print when printing the results of the subjective test You can select ALL all data related to the subjective test W O UNAIDED VA without unaided visual acuity it doesn t print DUnaided Visual Acuity W O BIN VF without the results of the visual function test it doesn t print 6 Data from binocular Visual Function Test SUBJ amp FIN ONLY shows only SUBJ and FIN information or OFF prevents from printing the results from the subjective test it doesn t print 4 Data from Subjective Test Print Objective assigns the items to print when printing the results of the objective test You can select ALL all data related to the objective test RK ONLY shows only RK information it only prints 3 Data from Refractometer LM ONLY show only LM information it only prints Data from lensmeter or OFF prevents from printing the results from the objective test it doesn t print neither 3 Data from Refractometer nor Data from lensmeter Default is OFF Print Kerato Data assigns either YES
15. And four table views and diagram Trial Lens Keratometer Data views can be selected Table view consists or four part List conversion is achieved applying the LIST1 LIST2 LIST3 and PRISM buttons of the touch screen or turning the dial sign will be shown in the field of the table in case of no relevant data But if there are relevant data but the values are met yet measured 0 or space will appear instead of sign Also you can change the prism display on the table To see the prism values in rectangular coordination X Y press X Y with SHIFT To see the prism values in polar coordination r 9 press r 0 with SHIFT LIST2 LIST3 PRISM GRPHIC CANCEL NEAR LISTI XY r 8 The following items are illustrated with the corresponding screen LIST1 S C A ADD Addition Power VA Visual Acuity ID P140423 0001 PD TEST RESULT SYSTEM CONFIG EDIT PROGRAM EDIT TEST EDIT MESSAGE RETINO GALLERY LIST2 LIST3 PRISM GRPHIC CANCEL LIST2 ADD VA BI BO BD BU NPC NPA Fusion Worth 4 Dots Stereo Minute 51 Stereo and Aniseikonia Dominant Eye TEST RESULT NPC Ocm Ocm SYSTEM CONFIG NPA OU Ocm 0 00D EDIT PROGRAM R Ocm EDIT TEST L Ocm Fusion GALLERY Stereo Minute Stereo Aniseikonia LISTI LIST2 LIST3 PRISM GRPHIC CANCEL LIST3 BLUR BREAK RECOVERY NPC NPA Fusion Worth 4 Dots Stereo Minute Stereo and Aniseikonia
16. Mainteh nce 5 tabe pta Eit cp bee eie rati iN Ec Deae oca aaen 193 15 1 Replacing Printing Paper nennen 193 15 2 Replacing Fuse nine nre eh n i ei et 194 15 3 Cleaning erbe cde teen ian ced buc nine ba eror dba 195 15 4 Storagez enmo ne an ee dmn de ete n p p hb re Et Deere dies 195 15 55 eDISPOSal mecum mecs cerea Eee cM een code IX Ana HRS cd teinte 196 16 Troubleshooting etienne ehe prece pn ees 197 16 1 Digital Refractor doesn t work at all 197 16 2 Refractor Body makes noisy sound while performing power on self test 197 16 3 Operation Panel displays empty screen sssssseee 197 16 4 Operation Panel doesn t print out ssssseeeeeneeem enn 197 16 5 Chart presenting device doesn t respond to Operation Panel 198 16 6 Transferred measurement from auto ref keratometer or auto lensmeter are not received by Operation Panel sese enne nennen nennen nene 198 16 7 All the polarization tests are not working sen 199 17 Specifications isa ea iiae ieena iaai adar nennen nnne nnne nennt 200 18 Components And Options eesessseeeeeeeeeneeenene nennen nnns 202 18 1 Standard Package COMPONENMS cecceeeeeeeeeeeeeeeeeeeaeeeeeeeeeeeseeeseeerseeeeneeeeas 202 18 2 Optional interface Package sese 203 19 Service Information sseesesssssseseeeeeee
17. Right Left Green Filter NOTE 10ABI prism lens can be complemented with the prism value between 0 and 5 You may change this value in the System Config menu According to this value screen display will be changed slightly Assign the required value in 10ABI complement on page 2 of the System Config In the MENU then the complement value with sign will appear under 10A in the lens diagram which can be referred to during measurement Right Left Right PO e o EN Q 47 2 6 LENS amp DATA MANIPULATION 2 1 2 3 TEST F LT S C Auto Occlusion SYSTEM CONFIG UC Type CC Auto Occlusion EDIT PROGRAM S E Fix EDIT TEST Ret inoscopy EDIT Mi 104B1 Complement GALLERY Link ATest w X Y NO Preset Yon Graefe MANUAL CANCEL 8 PD Input button PD Press the R L button of touch screen in the PD area to enter PD control mode for Right Left eye and turn on the LED for VD check simultaneously To control R L PD press the data value of R L area and change by the dial 48 7 Menu Selection LDR 7800 system supports various functions through menu selection To select menu just press the MENU button and press the Menu item of the touch screen Otherwise use the arrow buttons or the dial to move and the SET button to select Menu item are as follows Test Result For showing the whole test results The results can be previewed systematically in both tabular a
18. This test may be executed after the Near Distance Additional Spherical Power Using the Cross Grid Test 13 2 Near Point of Convergence Test Objective To measure the nearest point at which convergence is possible Chart Near Distance chart Auxiliary Lens None Expectation To obtain BREAK and RECOVERY value Operation Sequence NP N aco VA Lo 136 1 Press the N ADD VA button and then the NPC button of the touch screen Alternately press the TEST button and then select Near Point of Converg item of the touch screen to execute this test 2 Hang the Near Distance chart rod and adjust it with readable size for the patient You can also test with a pen 3 While bringing the Near Distance chart or the pen closer to the patient find the spot where the letter on the chart or the top of the pen is divided into two Write down this distance in the BREAK item 4 To the contrary while bringing the Near Distance chart or the pen closer to the patient find the spot where the letter on the chart or the top of the pen already divided join together Write down this distance in the RECOV item Near Point of Convergence BREAK RECOVERY ecoo O0 01 er o Wm o1 3E 0 12 m CANCEL 137 13 3 Near Point of Accommodation Test Objective To measure the Near Point of Accommodation during the subjective test Chart Near Distance chart Auxiliary Lens None Expectation To obt
19. printer Press the GRAPHIC button of the touch screen to verify the results in the graphical view It consists of two large parts TL Trial Lens Data RK Ref amp Kerato Data And LIST LIST1 is provide for the conversion of the screen m RK List FAR NEAR CANCEL Trial Lens Data illustrates required information in brief to set up the trial lens It 55 also visually displays the S C A BI BO BD BU PD values and the dominant eye ID P140423 0012 PD 64 00 TEST RESULT Trial Lens Data FIN FAR TEST RESULT SPH 0 75 SPH 0 75 STEM CONFIG CYL 2 75 70 CYL 1 50 50 EDIT TEST 2 25 EDIT MESSAGE Mn GALLERY Dominant Eye CANCEL Ref amp Kerato Data illustrates the Ref amp Kerato Data to the screen It also visually displays the S C A S E power R1 R2 PD values and the dominant eye 56 TEST RESULT SYSTEM CONFIG EDIT PROGRAM EDIT TE EDIT MES GALLERY ID P140423 0012 PD 64 00 TEST RESULT Ref amp Kerato Data RK SPH 0 75 R CYL 2 75 70 See le Dominant Eye SPH 0 75 L CYL 1 50 50 SE 1 50 CANCEL 57 7 2 System Config 1 6 LENS amp DATA MANIPULATION 1 1 TEST RESULT SPH Step SYSTEM CONFIG CYL Sian AXS Step EDIT PROGRAM 4 Step EDIT TEST SPH Step shift EDIT MESSAGE CYL Step shift GALLERY AXS Step shift A Step shift CANCEL See chapter 8 2 Description of
20. 1 Spread a general chart readable to patient such as number Landolt Ring Snellen E 2 Press the vertical mask button to leave only one row 3 Press the BIBO button to place the horizontal rotary prism 4 Select the 6Aauxiliary lens in the Lens dialogbox Note that if you are to use this method you can neither record extra phoria test result nor refer to the guide window 171 13 23 Vertical Von Graefe Test Objective To execute a vertical phoria test during the subjective test using Von Graefe chart Chart Vertical Von Graefe chart Auxiliary Lens Rotary prism right 10ABI prism left Expectation To make the right and left horizontal rod becomes horizontally aligned in the center Operation Sequence 1 To enter the vertical phoria mode press the Von Graefe Chart twice Alternately press the TEST button and then select Vert Von Graefe Item of the touch screen to execute this test 2 Or use the BDBU button in the horizontal Von Graefe Test mode 3 Askthe patient as follows Are the two horizontal rods aligned 4 If Yes finish this test since the patient has no phoria If No continue this test since the patient has phoria 5 Ask the patient as follows Which one is higher among the two horizontal rods 6 f The left one right eye with hyperphoria Turn the dial counterclockwise to add the BD prism till the two rods are horizontally aligned 7 df The right
21. 4 Dot Item of the touch screen to execute this test 2 Ask the patient how many bright points can be seen and what color is the lower circle If the patient sees 4 points it means normal fusion If the lower circle appears to be red then the right eye is dominant and if green left If the patient only sees 3 points the right eye is suppressed she he cannot see the upper rhombus shape If the patient only sees 2 points the left eye is suppressed she he cannot see the cross shape f the patient sees 5 points the patient has phoria If the red diamond shape is at the left side external phoria otherwise internal phoria f the patient sees 5 points and the three and the two flickers alternately the right and left eyes are alternately suppressed J Nomen Perform phoria tests if the patient has phoria explicitly 165 ecoo O0 01 9C a12 RDE OC 0 15 30 o2 um o SE or WETS 32 3 0 00 0 00 0 A 0 00 si Bo 0 00 sptsu SYSTEMI 3 DOTS 4 DOTS 5 DOTS A SALT Vision of Analysis Details patient 4 spots red F green O pink or red green alternately m Fusion red When the right eye is dominant o O green When the left eye is dominant 3 spots Right eye is a Two green and one O are seen o suppressed 2 spots Left eye is ii Onered andone O are seen suppressed o 5 spots Phoria Red and green are seen at the same o o ti
22. 52 ID P140423 0001 PD BLUR EES RECOVERY Dominant Eye TEST RESULT NRC NPC Ocm Ocm PRC SYSTEM CONFIG SAUR C 0 00D EDIT PROGRAM R Ocm L Ocm Fusion GALLERY Stereo Minute Stereo Aniseikonia EDIT TEST EDIT MESSAGE LISTI LIST2 PRISM GRPHIC CANCEL PRISM Results of Schober Von Graefe Aniseikonia Polarized Cross with the Fixation Point Test Maddox Test NRC and PRC Tests 53 ID P140423 0001 PD 1 2 FAR X Y TEST RESULT TEST NAME SYSTEM CONFIG Schober Von Graefe EDIT PROGRAM Coincidence EDIT TEST Pola Cross EDIT MESSAGE EN UMEN RI GALLERY NRC Div Blur Break Recover y 0 00 0 00 0 00 PRC Con Blur Break Recovery 0 00 LIST1 LIST2 LIST3 PRISM GRPHIC CANCEL 54 ID P140423 0001 PD 64 00 1 FAR X Y TEST RESULT SYSTEM CONFIG Thor ington Mal let 1 EDIT PROGRAM EDIT ME GALLERY SUPRA Fus Break Recover y INPRA Fus Break Recovery LISTI LIST2 LIST3 PRISM GRPHIC CANCEL For your information these are no separate menu but if the PRINT button is pressed during table view the measured results will be printed on the paper via the built in thermal printer It goes through Test Result display in place of the direct printing on paper if Preview List is set as YES on page 6 of the System Config which appears when the MENU button is pressed Set it as NO prints test results out through the built in thermal
23. Box and the chart presenting device 2 Check if the chart presenting device turned on 3 Check the cable connections and the system configuration by referring the figures in the appendix at the end of this manual 16 6 Transferred measurement from auto ref keratometer or auto lensmeter are not received by Operation Panel 1 Check the cable connections and the system configuration by referring the figures in the appendix at the end of this manual 2 Check if the auto ref keratometer or the auto lensmeter is configured properly with the options below e Auto ref keratometer RK v BPS 9600 e Auto lensmeter LM v BPS 9600 Y RS232C LMTORK 3 Check if the Converter Box connecting the auto ref keratometer or the auto lensmeter to LDR 7800 Junction Box is turned on Since old models don t supply power to Converter Box through serial interface cable appropriate power adaptor should be connected to Converter Box CRK series CLM series or newer models supply power to Converter Box 199 16 7 All the polarization tests are not working 1 Check if the vinyl sticker on the chart reflection plate is removed 2 Check if the vinyl stickers on the measuring windows of the Refractor Body are removed 17 Specifications Measurement Range Spherical Lens Cylinder Lens Cylinder Axis PD Rotary Prism Lens Cross Cylinder Retinoscopic Lens Hardware Specification Digital Refractor Operation Panel Junction Box
24. Cylinder Lens 025 050 Expectation The Dots Group Chart can be seen uniformly clear in spite of the up and down movement of the Cross Cylinder Operation Sequence 1 Press the Dots Group Chart to enter the Cross Cylinder mode Alternately press the TEST button and then select Cross Cyl Test Axis Item of the touch screen to execute this test 2 Select the desired field by pressing the R or L button 3 Press SHIFT CC 025 OR CC 050 button of the touch screen to change the type of Jackson Cross Cylinder lens A5 A 15 CCdua l CC 050 4 While pressing the button 1 and 2 alternately ask the patient with which button he she sees clearer 1 or 2 5 f the result of button 1 is seen more clearly turn the dial counterclockwise uan direction 6 If the result of button 2 is seen more clearly turn the dial clockwise 152 direction 7 This test is ended if there is no difference in the result of the button 1 and 2 amp S C A 0 00 i580 0 00 sptsu RDE SYSTEMI OC 0 15 25 os o 8 90 o2 t WE 0 15 io 13 13 Dual Cross Cylinder Test Objective To obtain the maximum corrected monocular CYL and AXIS during the subjective test using Dual Cross Cylinder Chart Dot group chart Auxiliary Lens DUAL Cross Cylinder Lens Expectation The Dots Group Chart divided into two parts in the same screen can be seen uniformly clear 153 Operation Sequen
25. Function e 1 8 NEAR Visual Acuity Binocular Visual Function Test NPC NPA NRA PRA FAR NRC PRC Schober Von Graefe Coincidence Poia Cross BO 0 50 X 000 YO Poia Cross w Fix 000 X 000 YO Maddox Rod BO 0 50 BU 0 50 BO 0 50 0 00 BO 030 X BU 0 10 YC BO 0 30 BU 0 10 lt NEAR gt BLR BRK RCV Schober BO 1 00 X 000 Y Von Graefe BO 1 00 BD 0 50 BOQ030 X BU 0 10 Y Coincidence BO 0 40 BD 0 10 BOO60 XO Bu010 YO Pola Cross BO 0 60 BD 0 10 BO040 X 000 YO Poia Cross w Fix BO 0 30 X 000 Y Maddox Rod BO 0 40 0 00 BO 0 30 0 00 BO 0 50 X 000 Y BO 0 50 0 00 189 Polarized Cross without Fixation Point Polarized Cross with Fixation Point Maddox Rod NEAR NRC PRC Schober Von Graefe Coincidence Polarized Cross without Fixation Point Polarized Cross with Fixation Point Maddox Rod 190 FAR FAR Fusiob worth 5 Dots Fusion Stereo OK Stereo Min Stereo 10 Minute Stereo Aniseikonia Aniseikonia Hor OK Vert OK NEAR NEAR Fusion worth 5 Dots Fusion Stereo OK Min Stereo 10 Aniseikonia Hok WeOk Keratometry jue NUM q Data from Keratometry R R1 L R1 779 mm 771 43125 D 43 75
26. LM or a PC interfaced with Digital Refraction System And also it has a built in thermal printer with it The junction box serves as a power supply to the Digital Refractor and the Operation Panel And it provides communication ports for interfaced instruments such as Chart Projector or Auto Ref Keratometer 1 2 Classification Classification Under the Provision if 93 42 EEC MDD Class Protection Against Electrical Shock Class Applied Parts Type B applied parts Protection against harmful ingress of water Ordinary IPXO Degree of safety in the presence of a flammable anesthetics mixture with air or with oxygen or with nitrous oxide Not suitable for use in the presence of a flammable anesthetics mixture with air or with oxygen or with nitrous oxide Mode of Operation Continuous 10 2 Safety Information 2 1 Introduction Safety is everyone s responsibility The safe use of this equipment is largely dependent upon the installer user operator and maintainer It is imperative that personnel study and become familiar with this entire manual before attempting to install use clean service or adjust this equipment and any associated accessories It is paramount that the instructions contained in this manual are fully under stood and followed to enhance safety to the patient and the user operator It is for this reason that the following safety notices have been placed appropriately within the text o
27. Option SPH ADD synchronizes the SPH power in NEAR mode with the sum of SPH and ADD power in FAR mode Option SPH always synchronizes the SPH power in FAR mode and in NEAR mode And option OFF never synchronizes any power related to ADD Default value is OFF Working Distance assigns Working Distance from 35 to 70 cm This affects the amount of near convergence of the Digital Refractor Default value is 40cm PD Auto Set assigns data source to be referred to for setting PD value RK LM or OFF can be chosen Default value is RK ANTT It is recommended to select RK for PD state because it is easier to measure PD using RK than using LM 70 3 B TEST amp DATA MANIPULATION 1 i 3 TEST RESULT 4 Display SYSTEM CONFIG Blur Break Recovery i YA Auto Set EDIT PROGRAM Allow Addition YES EDIT TEST ADD Estimation YES EDIT ME F lt gt N Data Link SPH ADD GALLERY Working Distance 60 cm PD Auto Set RK CANCEL 8 2 4 Page4 TEST amp DATA MANIPULATION 2 D Default Program assigns the system default program that is executed when the START button is pressed Headed by STANDARD up to 10 user defined programs are available for the selection Default value is STANDARD 2 Input Fusion specifies whether to display the function keys for inputting the result of worth 4Dot Test when the test is executed YES or NO can be chosen Default value is YES 3 Input Stereo specifies whether to displ
28. RK into SUBJ Also if ANY which is factory defined initial value from arbitrary mode into SUBJ Data Duplication occurs only once to prevent unintended mistakes For example once duplication had arisen into SUBJ ever the other one would not occur when returning to SUBJ from RK or LM mode Let s think the following situation where data duplication is applied to speed up optometry when the SUBJ Startup option is set to ANY in TEST amp DATA MANIPULATION 2 on system configuration page 4 1 Starting from the RK data Change mode into RK and then load data from a ref keratometer At this point if SUBJ button is pressed the RK data will be mechanically copied into SUBJ mode You can modify the RK data directly but such method is not recommended It will be more effective to leave them as the reference data for final decision and to use duplication method into SUBJ 2 Starting from the LM data After changing mode into LM load data from a lensmeter And then press SUBJ button to make automatic copy of the LM data into SUBJ mode Also you can see that changing into SUBJ mode is needed for preserving the reference data instead of working in LM mode 110 3 Finishing with FIN It is possible to change into FIN mode directly after setting the required values in initial mode In case of using neither a refractometer nor a lensmeter you can do the optometry process even more speedil
29. advance before sending data and then try again to press the PRINT button on RK or LM side one more time When the LM or RK button is pressed or LM and RK field is selected in the Transferred Data area containing one or more measurements transmitted from RK or LM data list will be popped up and the measured value will be shown on the left windows using the arrow keys and the dial to move vertically on the list It is expected to verify the data number on the 37 printout of the auto ref keratometer or the auto lensmeter and then pick up the desired one from the list The patient s data can be chosen more exactly if you compare the list number and the printed number on paper and then validate it with the preview values Let s select the suitable list and press the SET button to reflect values on the window data area At this time we can see that the S C A values including PD are set automatically in the Digital Refractor Using the LOAD function leads Quick examination If you want shortcuts such as LOAD LM or LOAD RK press the LM or RK button with the SHIFT button at the same time And then LM or RK lists will come out straightly The more easy method to load from RK or LM is available As you already have seen LDR 7800 system supports stand alone mode In stand lone mode if either RK or LM button is pressed without entering Transferred Area i e not to press LOAD button before the latest trans
30. equipment and prints test results extremely fast PRESET faculty defers physical lens change until all the necessary lenses are properly set at any states 11 12 13 14 16 17 19 LDR 7800 system supports wide visual acuity up to 40 Touch Screen supports various functions of the Operation Panel by using touch pen with ease Dialog driven menu and simple function keys make it easy to access complicated faculties In addition using SHIFT or ALT key combinations various options and faculties are easily accessed and executed To escape from the previous dialog as fast and convenient as possible ESC key is supported For professional examiners 18 visual acuity tests 24 monocular binocular balance tests 35 user defined unit tests are supported Also a Standard and 10 user definable pre programmed sequences are supported The CDR MATE program running on a PC which supports PC connectivity and PC style printer interface is optional Various binocular balance tests and phoria tests are supported Advanced graphical guide systems for such complicated tests are also available 20 4 Notes for Using the Instrument Do not hit or drop the instrument The instrument may be damaged if it receives a strong impact The impact can damage the function of this instrument So handle with care Install this instrument on a level stabilized table with no vibration to keep it normal state Exposure to direct su
31. fill up the above form after purchase and retain this manual as a permanent record of purchase 20 EMC Information 205 Table 1 Guidance and manufacturer s declaration electromagnetic emissions The LDR 7800 is intended for use in the electromagnetic environment specified below The customer or the user of the LDR 7800 should assure that it is used in such an environment Emissions test Compliance Electromagnetic environment guidance RF emissions Group 1 The LDR 7800 uses RF energy only for its interna CISPR 11 function Therefore its RF emissions are very lo w and are not likely to cause any interference in nearby electronic equipment RF emissions Class A CISPR 11 The LDR 7800 is suitable for use in all establish Farmonic emissions Class A ments other than domestic and those directly co IEC 61000 3 2 nnected to the public low voltage power supply network that supplies buildings used for domesti c Voltage fluctuations Complies See purposes Flicker emissions IEC 61000 3 3 Table 2 Guidance and manufacturer s declaration electromagnetic immunity The LDR 7800 is intended for use in the electromagnetic environment specified below The customer or the user of the LDR 7800 should assure that it is used in such an environment Immunity test IEC 60601 Compliance Electromagnetic environment Test level level guidance Electrostatic 6 kV contact t6 k
32. if possible To select a test for a step in the user designable program you may press a Chart button directly or select one by turning the dial or from the test selection menu z Test Mode Dist assigns whether near or far distance Press the combo box button of the touch screen or the dial to change near or far distance Data Element assigns SPH CYL AXS ADD VA BIBO BDBU or ADDVA Press the combo box button of the touch screen or press the S C A ADD VA BIBO BDBU or N ADD VA button to select this 80 Eye assigns BIN OU LEFT or RIGHT Press the combo box button of the touch screen or press the R OU or L button to select this Cross Cylinder assigns 0 25 0 50 or DUAL Cross Cylinder Press the combo box button of the touch screen to select this or press 1 2 buttons to select this field Fogging assigns the mount of fogging between 0 and 2 by using combo box button of the touch screen 0 12D Step Use SHIFT FOG to plus fogging value and SHIFT FOG to minus fogging value Auxiliary Lens assigns the right and left auxiliary lenses by the lens buttons of the touch screen and select the lens Also use Open Close button to select Open Occluding aperture Guide Message specifies guide message Press the msg button of the touch screen and use the dial to select AXS Which figure is clearer 1 or 2 Lets make a user designable program simila
33. it just makes the system switched to LM mode RK mode This mode is provided to support loading and memorizing ref keratometry data If there is no ref keratometry data loaded pressing the RK button will make the system switched to RK mode and then automatically loads the latest ref keratometry measurement transferred from RK auto ref keratometer Otherwise it just switches the system to RK mode SUBJ mode This mode is provided to support subjective refraction and memorizing subjective data that may be the perfect correction data of patient 105 To enter this mode press the SUBJ button At the first selection of this mode one of the measurements from LM RK or previous mode is copied to SUBJ mode according to the system configuration For more information see the chapter 8 Configuring the System FIN mode This mode is provided to support determining the final prescription values on the basis of the result from SUBJ mode perfect correction data Press the FIN button to enter this mode For loading a ref keratometry or lensometry measurement directly by pressing the RK or LM button the system should be configured as a Stand Alone type Otherwise it displays a list of data numbers transmitted from RK or LM 106 11 1 Why Examination Mode is Important You cannot understand why there are so many examination modes at first It seems that it is enough to start once and then do subjective optometry directly and it i
34. options for more information 58 7 3 Edit program 1 2 EDIT PROGRAM 1 TEST RESULT STANDARD EM CONFIG CUSTOM A CUSTOM B EDIT PROGRAM CUSTOM C EDIT TEST CUSTOM D EDIT MESSAGE CUSTOM E GALLERY CUSTOM F CUSTOM G CANCEL See chapter 9 1 Editing User Designed Program for more information 59 7 4 Edit Test 1 4 EDIT TEST TEST R CUSTOM 1 EM CONFIG CUSTOM 2 EDIT PROGRAM CUSTOM 3 EDIT TEST CUSTOM 4 EDIT MESSAGE CUSTOM 5 GALLERY CUSTOM 6 CUSTOM CANCEL See chapter 9 2 Editing User Designed Unit Test for more information 60 7 5 Edit Message TEST RESULT STANDARD TEM CONFIG BIS CUSTOM B EDIT PROGRAM CUSTOM C EDIT TEST CUSTOM D EDIT MESSAGE CUSTOM E GALLERY CUSTOM F CUSTOM G CANCEL See chapter 10 Edit Message for more information 61 7 6 Gallery CANCEL LDR 7800 system supports various kinds of near charts and images in the Operation Panel There are unique vision test functions and it will be able to the test of near vision with various kind of near charts In addition it is possible to explain the customer about various of the ametropia or the disease 62 8 Configuring the System LDR 7800 system provides various kinds of system configuration menu Thus it is able to optimize optometry environment You may start configuration by pressing the MENU button Then select System Config of the touch screen It is composed o
35. program of each step The thumbnail window is very useful to users This window supports the function that can show the value of the program and can execute to move each step by press thumbnail button of the touch screen 78 EDIT PROGRAM CUSTOM A STEP 3 3 TMode NONE XC NONE 5362 6253 B592 Data SPH Fog 0 00D Eye NONE Name Binocular Balance de eB see 6253 Which line is EEXE3 Msg clearer top or bottom ecoo SYSTEMI OO o3 OCo e um o CANCEL The BACK button of the touch screen in the bottom line goes to the previous step and the NEXT button to the next step The ADD button adds a new step behind the last one and the INS button insert a new step before the current one Press the OK button to confirm after defining program functions through all steps If you need to cancel the program editing press the CANCEL button The SHIFT button reveals hidden options The buttons of thumbnail area have a function as follow BACK button NEXT button LI Thumbnail window page up 79 ma Thumbnail window page down ADD button DEL button select to each step The option elements for designing a user defined program in the left top side of the window are as follows Test the chart of the system test to apply If Test item is changed related Chart Data Element Cross Cylinder Fogging and Auxiliary Lens items will be changed at a time
36. such as S C A by the increment value selected from one of the function keys on the bottom area of the LCD display 14 Jackson Cross Cylinder Manipulation buttons Flips the cross cylinder on the Jackson Cross Cylinder Test 15 Program Execution button Executes the standard program Executes a user designed pre programmed sequence by picking up one from the selection menu popped up by pressing the SHIFT and START buttons together Moves to the next inspection if pressed with the NEXT button Returns to the previous inspection if pressed with both SHIFT and NEXT button 40 BoB 1 608 806 16 Dial Changes the field value s such as S C A by the increment value selected In the MENU mode using menu item selection changing option and so on If SHIFT Dial button pressed can be configure Dial Click Configuration dialog box And then if Dial button pressed as user configuration can be use special functions 41 0 00 s 0 00 c A Dial Click Configuration gt lt Switching Data Element Executing Program Selecting Aux Lens Disable EEA CEEE assa 808 506 o LES 42 6 2 Operation of the Touch Screen Buttons Now it is time to discuss the features and functions of each touch buttons on the screen As LDR 7800 system is made to maximize user s convenience you have only to be fully aware of these basic descriptions to proceed into basic optometry ecoo RDE
37. the BD prism till they form a cross mark 178 FAR Pola Cross amp S C em OE B 5 R L BI oiai BO A 0 00 X 0 00 0 00 Y D 0 00 0 00 Bi B0 v X 0 00 BD BU ecoo0 RDE SYSTEMI 00 o1 0co 99 15 um os 3E 0 12 P0 2 CANCEL 13 27 Polarized Cross Test with Fixation Point Objective To execute the phoria test during the subjective test using the Polarized Cross chart with the Fixation Point chart Chart Polarized Cross with the Fixation Point chart Auxiliary Lens 135 Polarizing Filter right 45 Polarizing Filter left Expectation The upper right cross mark for the right sys and the lower left cross mark for the left eye are overlapped into one ideal cross Operation Sequence 179 To enter this mode press the Polarized Cross Chart Alternately press the TEST button and then select Pola Cross w Fix Item of the touch screen to execute this test Ask the patient as follows Can you see one ideal cross mark If Yes the patient has no phoria and all done If No the patient has phoria and continue the test At firsthand ask the patient to measure the horizontal phoria as follows Is the L shape to the left of the 4 shape or to the right of it If Right esophoria Turn the dial clockwise to add the BO prism till they form a cross mark If Left exophoria Turn the dial counterclockwise to add the BI prism till they form a cross mark At second
38. thumbnail area The Chart can be directly chosen EDIT TEST CUSTOM 1 TMode NONE Data NONE Eye NONE Msg ecoo RDE SYSTEMI OC 0 15 00 31 9Ca 12 90 o2 Wm o1 SE 0 12 Int d EM iU CUSTOM 1 CUSTOM 2 CUSTOM 3 CUSTOM 4 CUSTOM 5 CUSTOM 6 CUSTOM 7 CANCEL We introduce briefly the elements of the Unit Test program in the left window Chart assigns the chart to present Contrary to the user defined program the relational Chart Data Element Cross Cylinder fogging and Auxiliary Lens item would not be changed at all To select this press the Chart item of the touch screen immediately Test Mode Dist specifies near or far Press the combo box button of the touch screen select NEAR or FAR 89 Data Element assigns SPH CYL AXS ADD VA BIBO BDBU or ADDVA Press the combo box button of the touch screen or press the S C A ADD VA BIBO BDBU or N ADD VA button Eye assigns BINOCULAR LEFT or RIGHT Press the combo box button of the touch screen or press the R OU or L button to select this Cross Cylinder assigns 0 25 0 50 DUAL Cross Cylinder Press the combo box button of the touch screen to select this or press 1 2 buttons to select this Fogging assigns the amount of Fogging by press the combo box button of the touch screen between 0 and 2 Use SHIFT F6 FOG to plus fogging and SHIFT F7 fog to minus fogging
39. 0 000 YO 0 00 Aided VA R OU L 30 30 40 Refractometry Data 3 M acere N j 550 SPH 6 00 000 CYL 100 0 AXS 10 Patient s identifier Patient s name and sex Inspection Date and TIME Patient s age and the dominant eye PD near Far Unaided Visual Acuity FAR NEAR Data from Lensmeter FAR Aided Visual Acuity Data from Refractometer FAR Subjective Data R lt CLM gt L FAR 1 75 SPH 200 0 00 CYL 025 80 AXS 140 4025 ADD 025 ADD VA R ou L 20 000 x 000 000 v 000 VA eie eeaeee R OU L 20 20 20 NEAR 4025 SPH 4025 000 CYL 0 00 0 AXS 0 000 ADD 46 00 0 00 0 00 VA e Final Data 5 R lt CLM gt L SPH 200 CYL 025 AXS 140 ADD 3025 X 000 v 000 187 Data from Subjective Test FAR Additional Visual Acuity Visual Acuity NEAR Visual Acuity Final Data FAR Additional Visual Acuity Visual Acuity 188 NPC 7cm 10 5MA 673 NPA OU 33cm 303D BLR BRK RCV NRA OU 1 00 I 075 PRA OU 0 75 0 50 lt FAR gt BLR BRK RCV NPC Divergence 9 00 1100 800 PRC Convergence 10 00 12 00 9 00 X BO 0 50 000 Y BD 0 50 X BO 0 50 Y BD 0 00 Coincidence BO 0 30 X BO 0 30 BU 0 10 Y BDO 0 e Bin Visual
40. 0 1 0 net ENDO Za rA ue o 99000 1 0 STANDARD RETINO 12 1 6 Adjustment of the SPH CYL AXIS Values for Left Eye The sixth step is to coordinate the SPH CYL AXIS values for the left eye See 12 1 1 Adjustment of the SPH CYL AXIS Values for Right Eye 125 12 1 7 Jackson Cross Cylinder Test AXIS for Left Eye The seventh Step is to calibrate minutely the AXIS value for left eye on the base of the resultant SPH CYL AXIS value from step 6 See 12 1 2 Jackson Cross Cylinder Test AXIS for Right Eye 12 1 8 Jackson Cross Cylinder Test CYL for Left Eye The eighth Step is to calibrate the CYL value minutely for the left eye on the base of the resultant SPH CYL AXIS value from step 6 See 12 1 3 Jackson Cross Cylinder Test CYL for Right Eye 12 1 9 Red Green Test for Left Eye The ninth Step is to calibrate the SPH value minutely for the left eye on the base of the resultant SPH CYL AXIS values from step 6 See 12 1 4 Red Green Test for Right Eye 12 1 10 Checking The Visual Acuity for Left Eye Now we finished the monocular test for the left eye verify right spherical power one more time Use mask for foregoing inspection if necessary 126 12 1 11 Balancing Binocular Vision After the perfect correction of the right and left eyes binocular balance test may be performed to balance the two eyes by equalizing the stimulus to accommodation for the two eyes If the VA of the two eyes are not same this test
41. 63 280 os Change into the Red Green mode by pressing the Red Green chart Alternately press the TEST button and then select Red Green Test Item of the touch screen to execute this test Select the desired field by pressing to the R or L button Apply fog if necessary and increase the SPH value by about 0 5D Change the SPH value till the letters on the red ground can have uniform clarity and thickness in the same level as those on the green one If the letters on the red ground left are seen more clearly turn the dia clockwise direction If the letters on the green ground right are seen more clearly turn the dia counterclockwise direction 150 ecoo RDE oo wm 0 1 0 1 OC 0 15 oco ao 52 BETTE JE 0 12 m EEEN LLLI RETINO ANTT You should not ask the patient like which letters do you see more clearly on the red ground or on the green one According to the patient s corrected visual acuity in case of 1 0 20 in 20 20 6 in 6 6 ask concretely like On which ground do you see the number 2 9 more clearly red or green If the corrected visual acuity is lower ask the patient to read the bigger letter 3 4 5 in the higher area 151 13 12 Jackson Cross Cylinder Test Objective To obtain the maximum corrected monocular CYL and AXIS values during the subjective test using the Jackson Cross Cylinder Chart Dots Group chart Auxiliary Lens Cross
42. ABU prism right Rotary prism left Expectation To make the upper vertical rod and the lower vertical rod become vertically aligned in the center Operation Sequence 169 Press the Von Graefe Chart to enter the horizontal phoria mode Alternately press the TEST button and then select Hor Von Graefe Item of the touch screen to execute this test Ask the patient as follows Are the two vertical rods vertically aligned If Yes finish this test since the patient has no phoria If NO continue this test since the patient has phoria Ask the patient as follows Which one is on the left among the two vertical rods If The upper one Esophoria Turn the dial clockwise to add the BO prism till the two rods are vertically aligned If The lower one Exophoria Turn the dial counterclockwise to add the BI prism till the two rods are vertically aligned After finishing this test press the OK button of the touch screen to save each results of phoria tests is maintained separately or the CANCEL button of the touch screen to discard the result 170 NETS ga Hor Von Graefe D MC UE R L Bl oiai BO 0 00 X 4 1 0 00 0 00 Y 4 0 00 X F p o D z ecoo RDE O0 01 9Co um o PRESET P0 2 CANCEL PANTS If you make use of an old fashioned chart projector or a mirror chart not supporting the Von Graefe Chart you can imitate the horizontal Von Graefe chart as follows
43. Auxiliary Lens assigns the right and left auxiliary lenses by press the lens buttons of the touch screen and select the lens Also Use Open Close buttons Guide Message specifies guide message Press the msg button of the touch screen and use the dial to select If you want to undo the current unit test press SHIFT button and press RESET button of the touch screen Also if you want to clear the current unit test press SHIFT button and press CLEAR button of the touch screen RESET CLEAR FOG FOG Now we will take the same way with the user defined program to write down a unit test program in which the general VA chart puts on a Red Green mask to takes the place of the Red Green Test 90 EDIT TEST CUSTOM 1 p Tur TMode CUSTOM 1 Data CUSTOM 2 Eye CUSTOM 3 Msg CUSTOM 4 CUSTOM 5 SYSTEM1 CUSTOM 6 CUSTOM 7 CANCEL At first hand press the Landolt ring Chart button The chart with 0 9 25 in 20 20 7 5 in 6 6 will be suitable matching for the patient s visual acuity And press the Red Green filter for Red Green filter masking At this point apply fog by about 0 5D degree after selecting Fogging in the left window And prepare to measure the right S value in Far Distance mode S and R buttons consequently Afterward press the OK button to save and exit oco 10m0 e e SYSTEM 90 FAR Finally In the Main screen press the CUSTOM button of the chart area and press the first chart to ex
44. M RK and ANY Default value is ANY see chapter 11 for mode description 72 4 6 TEST amp DATA MANIPULATION 2 1 3 4 TEST RESULT Default Program STANDARD SYSTEM CONFIG Input Fusion YES Input Stereo YES EDIT PROGRAM Input Coincidence YES EDIT TEST Fog Balance 0 00 D EDIT MESSAGE Fog Red Green 0 00 D GALLERY Startup Mode EMPTY SUBJ Startup LM CANCEL 8 2 5 Page 5 TEST ENVIRONMENT D Beep Sound specifies whether the beep sound will be turned on or off ON or OFF can be chosen Default value is ON 2 Screen Off specifies the activation time of the screen saver Choose one from 0 minute inactive up to 1 hour at intervals of 5 minutes Default value is 10 minutes 3 Test Time Start specifies from when the elapse of time will start to be counted ENTERING SUBJ when the SUBJ button is pressed or BEGINNING TEST when the test begins can be chosen Default value is ENTERING SUBJ 73 Date Display specifies date format shown on the left top area display Choose one among DD MM hh mi 12H DD MM hh mi 24H DD MM MM DD hh mi 12H MM DD hh mi 24H MM DD and NONE Default value is DD MM hh mi 12H DD stands for date MM for month hh for hour and mi for minute 9 DATE YY MM DD assigns current date YY means the year TIME hh mm ss assigns current hour ss means the second 5 6 TEST ENVIRONMENT 1 2 TEST RESULT Beep Sound SY
45. Modifications of this equipment may only be carried out by LUXVISION service technicians or other authorized persons 5 Customer maintenance of this equipment may only be performed as stated in the Operator s Manual and Service Manual Any additional maintenance may only be performed by LUXVISION service technicians or other authorized persons 6 The manufacturer is only responsible for effects on safety reliability and performance of this equipment when the following requirements are fulfilled 1 The electrical installation in the respective room corresponds to the specifications stated in this manual and 2 This equipment is used operated and maintained according to this manual and Service Manual 10 11 12 13 14 15 16 17 15 The manufacturer is not liable for damage caused by unauthorized tampering with the device s Such tampering will forfeit any right to claim under warranty This equipment may only be used together with accessories supplied by LUXVISION If the customer makes use of other accessories use them only if their safe usability under technical aspect has been proved and confirmed by LUXVISION or the manufacturer of the accessory Only the person who has undergone proper training and instructions is authorized to install use operate and maintain this equipment Keep the Operator s Manual and Service Manual in a place easily accessible at all times for persons operating and maintaini
46. Press the OK button of the touch screen to finish this test after the recovery spot has been found 141 Ex NEAR 0 00 Negative Relative Accommodat ion 0 00 0 BLUR 0 00 RECOVERY 0 00 T 0 E 00 ecoo SYSTEMI 00 01 Coi Wm o1 3E 0 12 32 0 EE 6253 25 EET N aco LE 0 CANCEL 13 6 Positive Relative Accommodation Test Objective To measure Positive Relative Accommodation during the subjective test Chart Near Distance chart Auxiliary Lens None Expectation To obtain BLUR and RECOVERY value for the right or left eye or for both eyes Operation Sequence N aco Eiis PRA 142 1 Press the N ADD button and then the PRA button of the touch screen Alternately press the TEST button and then select Positive Relative Accomm Item of the touch screen to execute this test 2 Pressthe R L OU button to select the field to measure 3 After pressing the BLUR button of the touch screen place the NEAR Distance chart with 1 0VA 20 in 20 20 6 in 6 6 to 40cm away position from the patient s eye Turn the dial to find the spot where the letters on the chart to fade away If the break spot has been found press the RECOV button of the touch screen to enter recovery mode 4 Find the recovery spot while turning the dial Clockwise Press the OK button of the touch screen to finish this test after the recovery spot has been found NEAR Positive Relative Ac
47. STEM CONFIG Screen Off 10 min Test Time Start ENTERING SUBJ BEGINNING TEST EDIT PROGRAM Date Display MM DD hh mm 12H EDIT TEST Date YY MM DD 2014 04 23 EDIT MESSAGE Time hh mi ss 14 55 00 GALLERY CANCEL 74 8 2 6 Page 6 PRINT OPTION Print Subjective specifies items to print while printing the result of the subjective test Choose One among ALL all the data W O UNAIDED VA without result unaided visual acuity W O BIN VF without results of the visual function test SUBJ amp FIN ONLY showing only the SUBJ and FIN information and OFF without any subjective test Default value is ALL If all of the print options 1 through 4 are set to OFF or NO the internal printer prints out nothing Print Objective specifies item to print while printing the results of the objective test Choose one among ALL all the data RK ONLY showing the RK information only LM ONLY showing the LM information only and OFF without any objective test Default value is OFF If all of the print options 1 through 4 are set to OFF or NO the internal printer prints out nothing Print Kerato Data specifies whether Kerato value will be printed or not YES or NO can be chosen Default value is NO If all of the print options 1 through 4 are set to OFF or NO the internal printer prints out nothing Print ATest Data specifies whether the preview of the prism test for each phoria test will be printed or
48. SUBJ button yields SUBJ mode Of course you can work in the initial mode However in SUBJ mode you can change modes SUBJ RK LM freely and consequently compare SUBJ RK and LM values without the loss of data 108 24 04 01 57 PM FAR LMCFAR 0 25 0 50 95 0 00 0 00 0 00 5 FIN mode helps you to calibrate the final results for prescription And also you can compare the final prescription in the FIN mode with the previous the LM mode RK mode and SUBJ mode SUBJ FAR 0 25 0 50 95 0 00 0 00 0 00 Various inspecting modes play an important role not to lose patient s optometry information and hold data for each mode Therefore it is clear that they are inevitable when you gather and analyze all the information And each of the modes can be selected by the tab button of the touch screen 109 11 2 Data Duplication Mode change is always followed by data duplication For example if starting from initial mode and pressing the SUBJ button to enter SUBJ mode you can see that all your previous works are duplicated as they are in the SUBJ Likewise changing some mode including SUBJ to another one cause data duplication There is a direct compulsive duplication method when changing into SUBJ mode from others If SUBJ Startup option is set to LM in TEST amp DATA MANIPULATION 2 on system configuration page 4 it always reproduces the LM data into SUBJ and if RK always from
49. TOM G CANCEL 100 10 4 Editing Test Name Press MENU and select Edit Message and Test Name in order to edit the user defined test name Select the test name of the touch screen you want to edit When you select CUSTOM A1 the initial program name CUSTOM A1 displays on the Message area of the virtual keyboard You can make 35 test names and write maximum 15 characters But it is impossible to change the system provide test name 1 4 EDIT MESSAGE TEST NAME PROGRAM NAME TEST NAME GUIDE SHOP NAME TEST RESULT CUSTOM 1 M CONFIG CUSTOM 2 in EDIT PROGRAM CUSTOM 3 EDIT TEST CUSTOM 4 EDIT MESSAGE CUSTOM 5 GALLERY CUSTOM 6 CUSTOM CANCEL 101 10 5 Editing Guide Message LDR 7800 system provides the test guide message to help your eye examination You can change the test guide message as you want Press MENU and select Edit Message and Guide Message Select the test guide of the touch screen you want to edit You can make a new guide message on one of empty slots default value is EMPTY or edit the exiting test guide message It is possible to make 28 test guides and to write 60 characters at every test guide message But you cannot edit the system provided test guide message 1 7 EDIT MESSAGE GUIDE MESSAGE CUSTOM PROGRAM NAME TEST NAME GUIDE MESSAGE SHOP NAME a EMPTY TEST RESULT SYSTEM CONFIG qwertyyuiop jha EDIT PROGRAM Su EDIT TEST EDIT MESSAGE GALLERY SYSTEM CUSTOM
50. Test Objective To execute a vertical Phoria test during the subjective test using the Maddox Rod chart Chart Maddox Rod chart Auxiliary Lens Rotary prism right Vertical Maddox left Expectation The horizontal rod for the left eye is united with the Maddox Chart for the right eye Operation Sequence 159 1 To enter this mode press the Maddox Chat twice or press the BDBU button and then press The Maddox chart or press SHIFT button and the Maddox chart at a time The prism change window is presented in the left top area and the Guide Window in the right top area Alternately press the TEST button and then select Vert Maddox Rod Item of the touch screen to execute this test 2 Turn the dial till the patient says that the rod is united with the dot 3 Ifthe vertical rod is located up the dot turn the dial clockwise direction 4 Ifthe rod is located under the dot turn the dial counterclockwise direction 5 This test is ended if the rod is united with the dot 4 PM FaR Yert Maddox Rod Streak 2 i Streak n f El Ei R L Dial 0 00 X 0 00 0 00 Y D 0 00 0 00 81 80 0 00 sptsu ecoo SYSTEMI 9 To o1 9Co012 MI um o 3E 0 12 ma o2 235 05 3858 06 653 08 Gss2 0 1 DIE P0 2 CANCEL 13 18 Polarized Binocular Balance Test 160 Objective To adjust binocular balance during the subjective test Chart Polarized Binocular Balance chart Au
51. V Floors should be wood concrete or Discharge ESD 8 kV air contact ceramic tile If floors are covered with IEC 61000 4 2 8 kV air synthetic material the relative humidity should be at least 30 Electrical fast 2 kV for power 2 kV for Mains power quality should be that of transient burst supply lines power a typical commercial or hospital IEC 61000 4 4 supply lines environment Surge 1 kV lines to lines 1 kV lines Mains power quality should be that of IEC 61000 4 5 2 kV lines to earth to lines a typical commercial or hospital 2 kV lines environment to earth Voltage dips short 596 Ur 596 Ur Mains power quality should be that of interruptions and 9596 dip in Ur gt 95 dip a typical commercial or hospital voltage variations on For 0 5 cycle in Up environment If the user of LDR 7800 power supply input 4096 Ur For 0 5 cycle requires continued operation during lines 60 dip in U 4096 Ur power mains interruptions it is 206 IEC 61000 4 11 For 5 cycle 6096 dip in recommended that the LDR 7800 be 7096 Ur Uy powered from an uninterruptible 30 dip in U For 5 cycle power supply or a battery For 25 cycle 70 Ur lt 5 Ur 30 dip in gt 95 dip in U7 Uz For 5 cycle For 25 cycle 596 Ur 9596 dip in U7 For 5 cycle Power frequency 5 3A m 3A m Power frequency magnetic fields sho 0 60Hz magnetic fi uld be at levels characteristic of a ty eld pical location in a typical comme
52. Wiss 5 i CC Auto Occlusion YES EDIT PROGRAM xls ribs CC ONLY EDIT TEST Ret inoscopy 1 5D EDIT ME 104B1 Complement Bawa GALLERY Link dTest w X Y D NES NO Preset Yon Graefe MANUAL CANCEL 8 2 3 Page 3 TEST amp DATA MANIPULATION 1 D A Display assigns the notational method for prism display X Y Cartesian coordination or r O polar coordination can be chosen Default value is X Y 2 Blur Break Recovery specifies whether to display the function keys for executing NRC and PRC test on the horizontal prism adjustment mode that is entered by pressing the BIBO button Default value is YES 3 VA Auto Set assigns the type of chart mask for the unaided visual acuity test and aided visual acuity test With RK and or LM data loaded by calculating 69 from the measurement s data it can estimate expected VA of patient So it can present a VA chart and mask the expected line of the chart automatically Unaided VA is estimated by the RK data and aided VA by the difference between the RK and LM data Default value is OFF Allow Addition specifies whether additional power can be accepted or not YES or NO can be chosen Default value is NO ADD Estimation specifies whether the Addition Power will be estimated and set automatically when the system enters near addition test YES or NO can be chosen Default value is NO F N DATA Link specifies how to reflect the ADD value between near and far distance
53. XS will be reversed on the screen and the numeric chart will be spread You may be worried that the test combined with the basic buttons might be gone away if a unit test is made like this However LDR 7800 system prevents not to override the system provided basic tests absolutely Therefore there is no situation on earth that basic test of your system could not be processed by your accidental or intentional mistakes 93 L 0 00 0 00 0 0 00 CUSTOM 94 10 Editing Messages 10 1 Introduction LDR 7800 system has the virtual keyboard to rewrite the message You can edit the following message Program Name to change user defined program name Test Name to change user defined unit test name Guide Message to change test guide message in the test Shop Name to change printer footer in the case of internal printer When you press MENU button and select Edit Message item of the touch screen the list you can edit appears Editable item is divided by tab button If you press Test Name item of the touch screen appear user defined unit test list Also the something else all is identical Press the unit test list item and appeared the virtual keyboard Then you can be edits message by select each item on the screen 95 1 2 EDIT MESSAGE PROGRAM NAME PROGRAM NAME NAME STANDARD CUSTOM A CUSTOM B EDIT PROGRAM CUSTOM C EDIT TEST CUSTOM D EDIT MESSAGE CUSTOM E GALLERY CUSTOM F
54. able program in your own way Unit Test follows naturally To begin with let s start from the user designable program Editing User Designable Program To edit a user defined program press the MENU button first and then select Edit Program of the touch screen Then program selection display will be shown You can here select one from 10 programs You cannot select STANDARD i e system defined program STANDARD will be show icon and each program will be show a program name total step lock unlock icon Use arrow buttons and the dial to select one for example CUSTOM A or press the program name of the touch screen Then the Edit Program will be executed about each of the program 77 1 2 EDIT PROGRAM 1 TEST RESULT STANDARD SYSTEM CONFIG ABIA CUSTOM B EDIT PROGRAM CUSTOM C EDIT TEST CUSTOM D EDIT ME CUSTOM E GALLERY CUSTOM F CUSTOM G CANCEL In the editing display the Program name and the step are appeared on the top area The first number stands for the current step and the second number following for the whole steps For instance if the user designable program has 10 steps all together and the current step is the 4th 4 10 will appear The maximum step of user defined program is 32 The left top area shows elements and value to define In the downward the Chart buttons are located Function buttons are located in the bottom line The right area is appeared the thumbnail window It includes the
55. afety purposes 12 2 3 Environment Factors Avoid the following environments for operation or storage Where the equipment is exposed to water vapor Don t operate equipment with a wet hand Where the equipment is exposed to direct sunlight Where the temperature changes extremely Normal operating temperature range is from 10 C to 35 C Humidity is from 3096 to 90 Where it is near the heat equipment Where the humidity is extremely high or there is a ventilation problem Where the equipment is subject to excessive shocks or vibrations Where equipment is exposed to chemical material or explosive gas 13 Be careful not to be inserted dust especially metal Don t disassemble the product or open We aren t responsible for it for nothing Be careful not to close the fan located on the lateral or rear side of the equipment Don t plug the AC power cord into the outlet before the connection between devices of the equipment is completed This can generate the defect Pull out the power cord with holding the plug not the cord For the normal operation of the machine please keep the ambient temperature is 10 C 35 C humidity is 30 90 and atmospheric pressure is 800 1060hpa For the Transfortation of the machine please keep the ambient temperature is 40 C 70 C humidity is 10 95 and atmospheric pressure is 500 1060
56. ain the Near point of Accommodation for the right or left eye or for both eyes Operation Sequence N sco VA E NPA 1 Press the N ADD VA button and then the F2 NPA button Alternately press the TEST button and then select Near Point of Accomm Item of the touch screen to execute this test 2 Hang the Near Distance chart rod and adjust it with readable size for the patient You can also test with a pen 3 Press the R L OU button to select the field to measure 4 While bringing the Near Distance chart or the pen closer to the patient find the spot where the letter on the chart or the top of the pen starts to fade away Write down this distance for the right or left eye or for the both eyes 138 NEAR 0 00 Near Point of Accommodation 0 00 ou cm 0 0 00 R cm L cm d x ecoo RDE O0 01 9Co ODE um os 3E 0 12 CANCEL 13 4 Near Addition Test with Fused Cross Cylinder Lenses Objective To correct the ADD according to the accommodation using Cross Grid Chart Near Distance Cross Grid chart Auxiliary Lens None Expectation To make the horizontal and vertical rods have the same clarity and the same width similar to Far Cross Grid Test Operation Sequence N aco us 1 Press the N ADD button and lower the Near Chart and position the Near Cross Grid chart at 40cm Alternately press the TEST button and then select 139 Near ADD of the touch
57. al and current state 5 Menu Selection MENU Displays the measured results Sets up system configurations Edits the user defined program Edits the user defined unit test Edits messages Gallery f pressed with the SHIFT button display the version info in addition to system setting touch calibrate for engineer 6 LIGHT button LIGHT To turn off the LAMP of the CCP CDC and to adjust of the Near Chart Illumination s brightness of the Digital Refractor To turn on Chart Lamp press the ON button of the touch screen To turn 34 off Chart Lamp press the OFF button of the touch screen If Chart is CDC appear the ON OFF toggle button on the screen To adjust brightness of the Near Chart illumination press arrow button of the touch screen or use dial 0 00 s 0 00 c 0 A Light Control Chart Lamp Near Chart l I lumination EET EJ 1 D ELLE CANCEL 7 Data Clear button CLEAR SHIFT Clears the field data partly or entirely and removes all the lenses in the Digital Refractor Initializes only the contents on the current mode if pressed with the SHIFT button TIP You may change the behavior of CLEAR button as either SOFT reset or HARD reset in the page 7 of the system configuration menu HARD reset initializes the LDR 7800 physically from the beginning not just removes the lenses and clears the data on the display ecoo 35 0 00 0 00 0 n nn Al
58. ay amp Touch Panel This screen is for information about the optometry data and procedures Touch screen provides that it will be able to select the buttons at the screen LCD Hinge LCD screen be able to tile with front and rear and be able to rotate with right and left by 90 degree direction Buttons Panel These buttons are for the examination execution Printer Print the examination result Cable Connector The part to connect interface cable Dial This dial changes the value S C A ADD PRISM The direction is left for the right for the Also this dial is used to change the values in the system configuration menu 26 5 3 2 Detail Explanation Rear side D Connector for the Junction Box Port to connect the Operation Panel to the Junction Box 2 Connector for S W upgrade This port is used for downloading and upgrading the Operation Panel firmware 27 5 4 Various Accessories X This section introduces the various accessories included for LDR 7800 system 5 4 1 Accessories for Digital Refractor Forehead rest 1EA Q Face shield 4EA 2EA attached 2EA as spare Near Point Card 1EA Interface cable 1EA Digital Refractor amp JB 24 pin DVI Near point Rod 1EA Dust Cover 1EA Bolt Cover 2EA Screw Bolt 2EA e 6 eG 60 28 5 4 2 Accessories for Operation Panel and Junction Box Accessories for Operation Panel D Printer Paper 3EA 1EA loaded in the printer
59. ay the function keys for inputting the 71 result of Stereo amp Minute Stereo Tests when the tests are executed YES or NO can be chosen Default value is YES Input Coincidence specifies whether to display the function keys for inputting the result of Aniseikonia Test when the test is executed YES or NO can be chosen Default value is YES Fog Balance specifies the amount of fogging power to set automatically when one of the Binocular Balance tests is executed Up to 1 00 D can be set by the step of 0 125D This value also serves as the alternative value for the amount of fog when the Fog or the Fog function key is executed in the SPH adjustment mode Default value is 0 00D Fog Red Green specifies the amount of fogging power to set automatically when the Red Green Test or a test with Red Green filter is executed Up to 1 00 D can be set by the step of 0 125D This value also serves as the primary value for the amount of fog when the Fog or the Fog function key is executed in the SPH adjustment mode Default value is 0 00D Startup Mode specifies from which mode system will start when turning on the power or when the system is reset by the execution of CLEAR button Choose one from EMPTY UA LM RK or SUBJ Default is EMPTY See chapter 11 for mode description SUBJ Startup specifies from which code data will be copied and used when entering the SUBJ mode by the SUBJ button Choose one among L
60. ce Press the Dots Group Chart to enter the Cross Cylinder test mode Alternately press the TEST button and then select Cross Cyl Test Axis Item of the touch screen to execute this test Select the desired field by pressing the R or L button Press SHIFT DUAL to change into the DUAL Cross Cylinder The patient sees the Dots Group chart as two divided parts Test guide on the right side shows the location of two charts in the view of patient Ask the patient as follows Which chart do you see clearly right or left Which chart do you see clearly up or down The answer will be right left or up down After analyzing the location as area 1 or 2 comparing to guide area If the area 1 is seen more clearly turn the dial counterclockwise direction If the area 2 is seen more clearly turn the dial clockwise direction This test is ended if there is no difference in the area 1 and 2 154 amp S C o JP A 0 00 Bi B0 0 00 sptsu ecoo RDE SYSTEM1 0 15 o 05 99C 0 8 OO o3 9Ca 12 5 4 oo 900 o3 0 2 7 990 1 0 um os SE oi m xd 0 8 m o 966 cou Ses s05 o 3 em 13 14 Cross Grid Test for Distance Objective To obtain the maximum corrected monocular SPH using Far Cross Grid chart Accommodation Chart Cross Grid for Distance chart with CCP 3100 CDC 4000 only Auxiliary Lens Fixed Cross Cylinder Lens Expectation The Horizontal and Vertical rods can be seen uniformly di
61. commodat ion R i ou L BLUR RECOYERY ecoo RDE a OC 0 15 O0 01 9Co012 206 oz um o BLUR 0 2 CANCEL 13 7 143 Negative Relative Convergence Test Objective To measure the Negative Convergence during the subjective test Chart Near Distance chart Auxiliary Lens None Expectation To obtain BLUR BREAK and RECOVERY value for the right or left eye or for both eyes Operation Sequence um m NPC Press the F N button of the touch screen to select near or far mode Press the BIBO button and then the NRC button of the touch screen Alternately press the TEST button and then select Negative Relative Convrg Item of the touch screen to execute this test In the far mode horizontal Von Graefe Chart will be spread on the screen In the Near Mode lower the Von Graefe chart until it is placed to 40cm away position from the patient s eye so that the patient could see this chart After pressing the BLUR button of the touch screen turn the dial counterclockwise to ass the BI prism Press the BREAK button of the touch screen by the time the chart starts to fade away If there is no such spot and the chart appears to be divided into two continue the test Continuously turn the dial counterclockwise to ass the Bl prism Press the RECOV button of the touch screen by the time the chart is divided into two At this time turn the dial clockwise to subtract the BI prism Press the OK bu
62. distances between portable and mobile RF communications equipment and the LDR 7800 The LDR 7800 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled The customer or the user of the LDR 7800 can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment transmitters and the LDR 7800 as recommended below according to the maximum output power of the communications equipment Rated maximum output power of transmitter Separation distance according to frequency of transmitter m 150kHz to 80 MHz d WP 80MHz to 800MHz 800MHz to 2 5GHz d NP d L LWP W 0 01 0 12 0 12 0 23 0 1 0 38 0 38 0 73 1 1 2 1 2 2 3 10 3 8 3 8 7 3 100 12 12 23 R 78 DIGITAL REFRACTOR 9990 NW 14 Street Suite 105 Doral FL 33172 Telephone 888 334 4640
63. dust cover 196 15 5 Disposal NOTE To dispose the instrument accessories and components follow local governing ordinances and recycling plans regarding disposal or recycling of instrument or device components Especially a lithium battery may pollute the environment if the instrument or a lithium battery is abandoned When disposing packing materials sort them by the materials and follow local governing ordinances and recycling plans 197 16 Troubleshooting 16 1 Digital Refractor doesn t work at all 1 Check if power cord is connected correctly 2 Check if the 24 pin and 15 pin cables for the Refractor Body and the Operation Panel are connected correctly 3 Check if any of the fuses in the Junction Box is blown off 16 2 Refractor Body makes noisy sound while performing power on self test 1 Check if any of the fuses in the Junction Box is blown off 2 Check if the voltage setting is correct in the Junction Box 16 3 Operation Panel displays empty screen 1 Check if the 15 pin cable is connected correctly 2 Check if the LED of the Operation Panel turned on 16 4 Operation Panel doesn t print out 1 Check if printing paper is loaded inside out 2 Check if the printer cover is closed correctly 3 Check if any of the fuses in the Junction Box is blown off 198 16 5 Chart presenting device doesn t respond to Operation Panel 1 Check if the 4 pin cable is connected correctly between Junction
64. e 6 Pull out the end edge of the paper from the printer cover slot and close the cover Operation Panel VAN INFORMATION Use a thermal printing paper of width 57mm and diameter of roll 25mm 194 15 2 Replacing Fuse Power Connector v 1ndino iHwH2 a indui ndino Nvo Wu ui na ve ACOS HO12wvH4SH vs od Ce VEAS WEL AU YL UN 718NYvd NOLLVHSdO xos wOLLONnr gt 3 n o z Z m F e 2 NOLLOS3INNNO2 Wi Fuse Holder Junction Box 1 Turn off and disconnect the power cord 2 Pull out the fuse holder 3 Replace old fuse s with new one s 4 Re install the fuse holder VAN INFORMATION Use 250V T5 0AL fuse for the Junction Box Digital Refractor LDR 7800 JB 195 15 3 Cleaning 1 Basically keep this instrument clean Don t use volatile cleaners thinner or benzene etc 2 Polish each head and operation panel with a dry cloth containing detergent solution 3 When cleaning lens or glass of this instrument clean it using a soft and dry tissue after removing dirt or other materials on the lens by wind blower 4 Clean the headrest with plastic disinfectant that harmless to human body 15 4 Storage If the instrument LDR 7800 Digital Refractor is not to be used for a long time it is recommended to disconnect the power supply and protect the Refractor Body with
65. ecognize up to 10 arc minutes Press the 10 button of the touch screen to set 10 arc minutes 184 7 fall the rods including the central fixation point appear to be plain the patient can recognize stereovision Press NG button of the touch screen to set NG no good Me RDE OO o1 9C 2 12 906 coo sen s05 185 14 Examination Results and Printout After finishing all the inspection processes you may print the results either on the screen or on the paper Since LDR 7800 system provides various options to save printing paper refer the related Chapter 8 Configuring the System with this chapter 14 1 How to Print Since LDR 7800 system supports various modes such as EMPTY UA RK LM SUBJ and FIN it is recommended to consider carefully such modes when printing the results LDR 7800 system follows the rules below 1 Prints the results from the SUBJ mode if the inspection has not performed in the FIN mode 2 Prints the result from the EMPTY mode if the inspection has not performed in the SUBJ mode 3 Always prints the Ref Kerato results from the RK mode If the results from the RK mode have been changed arbitrarily the changed value will be printed Thus changing mode into the SUBJ mode should be necessary when starting with the data from auto automatic Ref keratometer Accordingly you don t have to care about modes since LDR 7800 system prints the results by finding the best fit mode
66. ecute this unit test program As a result there will be fogged by 0 5D in the right eye and the Red Green Filter will be placed in the Landolt ring Chart Of course the user defined CUSTOM A1 Chart can be chosen by press the TEST button and press CUSTOM button of the touch screen and select it 91 FIN FAR 0 25 0 75 0 75 212545 231750 er 10 50 an 0 0 10 sso 0 0 10 0 0 10 D 0 10 U 0 10 sotsu D 0 10 CUSTOM Let s take another example Use a Number Chart when processing the Dual Cross Cylinder Test After pressing the MENU buttons select Edit Test item of the touch screen and select one of the Unit Test item so as to enter the Unit Edit Test First press the Number Chart Button The chart with 0 6 50 in 20 20 15 in 6 6 will be suitable matching for the patient s visual acuity Assign FAR to the Test Mode item AXS to the Data Element item RIGHT to the Eye item and DUAL to the Cross Cylinder item Then the Cross Cylinder Test can be processed using the Number Chart 92 EDIT TEST CUSTOM 2 Tuy Thode NONE FHH 25904 Data AXS CUSTOM 2 RIGHT CUSTOM 3 CUSTOM 4 CUSTOM 5 OC 0 15 92 150 oz E s 699 CUSTOM 6 S WE 9 15 CUSTOM 7 EEEn Owe Push the OK button to save and In the Main screen press the CUSTOM button of the chart area and press the second chart to execute this unit test program Consequently the Dual Cross Cylinder will be placed in the right eye the A
67. ee tentent atn sitet ntn a iiiki ina 204 20 EMCInformation 5 rine rece i oris deck Ceci Aapa daraa ENAA api Edan dabaea raih 205 1 Introduction 1 1 Outline of the Instrument The LUXVISION Digital Refractor LDR 7800 system is a computerized auto refractor used for subjective refraction by regarding the patient s accommodation power and facilities Also the Digital Refractor is used for detecting and measuring any anomalies in binocular vision such as muscle balance binocular balance aniseikonia fusion and stereopsis The subjective refraction can be practiced on the basis of objective refraction that is done by using an Auto Ref Keratometer RK connected to Digital Refractor The examiner can do their optometric practice in pretty short period of time with ease with the aid of fully integrated and automated Digital Refraction System where every instrument for the refraction is interfaced and controlled by one touch of button on the Digital Refractor LDR 7800 system includes a refractor body an operation panel and a junction box The refractor body has more than a hundred lenses and serves as an automatic lens loading unit It is connected to the operation panel via the junction box and is controlled by the operation panel The operation panel is the main controller of LDR 7800 system It controls the refractor body chart presenting device and also receives data transmitted from Auto Ref Keratometer RK Auto Lensmeter
68. een Test Cross Cyl Test Power Cross Cylinder Test Power Cross Cyl Test Axis Cross Cylinder Test Axis Cross Grid for Dist Cross Grid for Distance Dominant Eye for Phoria Determining Dominant Eye for Phoria Hor Maddox Rod Horizontal Maddox Rod Test Vert Maddox Rod Vertical Maddox Rod Test Binocular Balance Polarized Binocular Balance Test Polarized Red Green Polarized Red Green Test Worth 4 Dots Worth 4 Dots Test Schober Schober Test Hor Von Graefe Horizontal Von Graefe Test Vert Von Graefe Vertical Von Graefe Test Hor Coincidence Horizontal Coincidence Test 134 Vert Coincidence Vertical Coincidence Test Pola Cross Polarized Cross without Fixation point Test Pola Cross w Fixation Polarized Cross With Fixation point Test Stereo Stereo Test Minute Stereo Minute Stereo Test 135 13 1 Near Visual Acuity Test Objective To inspect the Near VA with ADD Chart Near Distance chart Auxiliary Lens None Expectation To inspect Near VA with ADD for the right or left eye or for both eyes Operation Sequence N aco VA 1 Press the N ADD VA button and lower the Near Distance Chart Alternately press the TEST button and then select Near VA with ADD item of the touch screen to execute this test 2 Press the R L OU button to select the field to measure 3 Write down each result for the right and left eye and for the both eyes Cf
69. eow lE 148 13 10 Cylinder Power Test Objective To obtain the maximum corrected monocular CYL value during the subjective test the Clock Dial chart Chart Clock Dial chart Auxiliary None Expectation All the rods on the screen can be seen uniformly clear Operation Sequence 1 This test should be done after setting the Cylinder Axis Alternately press the TEST button and then select Cylinder Test Power Item of the touch screen to execute this test 2 Press R or L button to select desired field 3 Press the Clock Dial chart to Change into astigmatism Measurement 4 To enter the Cylinder Power mode press the Clock Dial chart one more time or press the C button in astigmatism mode or press the SHIFT button and the Clock Dial Chart at a time 5 Turn the dial in direction until all rods are seen even At this time the location of the thickest looking rod can be changed If then adjust the Axis according to the following procedure 6 Decrease the Axis value if the thickest looking rod moves counterclockwise 7 Increase the Axis value if the thickest looking rod moves clockwise 13 11 149 Red Green Test Objective To verify the maximum corrected monocular SPH value during the subjective test using the Red Green chart Chart Red Green chart Auxiliary Lens None Expectation The letters on the red and green ground can be seen uniformly clear Operation Sequence 50 os ELI
70. ex Distance Check Windows Used to check the patient s VD the distance from the corneal vertex point to the lens Near Point Illuminator Provides an illumination to the near chart Forehead Rest Adjustment Knob Used to move the Forehead Rest forward and backward in order to adjust the vertex distance VD 22 OG Near Point Rod Fixation Point the place which affix the near point rod Horizontal Knob Used to adjust horizontal balance using the 11 Level VD confirmation light When patient s forehead isn t docking condition during measurement informs to examiner by lamp Unit table arm connector connect to Digital Refractor and Unit table arm Cable Connector Part the parts which connect to interface cable Level Used to verify that the refractor head is level Measuring Windows patients look at the chart through these windows Face Shields Patient s face touches the shields during measurement Clean them before measurement Forehead Rest Patient s forehead should touch the rest during measurement 23 5 2 Junction Box JB Junction box plays an important role in the connection among various devices Operation Panel Converter Box and Chart Projector This component supplies not only communication channel but also power channel e o e Ns iaa SINIT Won 3 so e e gt Azt wi
71. f turn the dial to the direction counter clockwise and if to the direction clockwise Repeat this procedure until the patient sees and even See 13 12 Jackson Cross Cylinder Test m 0 00 0 00 0 00 pe 0 0 00 0 00 0 00 0 00 ecoo0 RDE SYSTEMI 8 E 00 E 9Ca12 fa um o STANDARD HOLD SEF ix CYL 123 12 1 4 Red Green Test for Right Eye The fourth step is to calibrate the SPH value minutely for the right eye on the base of the resultant the SPH CYL AXIS values from step 1 First ask your patient on which background he she can see the letters more clearly the green background or the red one If green turn the dial to the direction counter clockwise as it is over corrected and otherwise to the direction clockwise as it is under corrected Repeat this procedure until letters on both green and red backgrounds appear equal See 13 11 Red Green Test ER 0 00 0 00 0 00 ee 0 0 00 0 00 0 00 0 00 SYSTEM1 OO o3 9Ca12 z MITTEN um o 3E6012 PE RETINO 124 12 1 5 Checking The Visual Acuity for Right Eye Now we finished the monocular test for the right eye verify the right spherical power one more time Use mask for the foregoing inspection if necessary FAR LM FAR 0 00 0 00 0 0 00 0 00 0 00 cans Wi NH ecoo RDE OC 0 15 00 01 9Ca1 56 oz um o Seo WE 915 sra F0G OOCOO 0 8 OOOCO 0 9 0900
72. f 6pages and the major categories are as follows LENS amp DATA MANIPULATION 1 2 TEST amp DATA MANIPULATION 1 2 TEST ENVIRONMENT PRINT OPTION Before exploring configuration by page sequence all around button method is covered first 1 8 LENS amp DATA MANIPULATION 1 1 2 TEST RESULT SPH Step SYSTEM CONFIG al Si AXS Step EDIT PROGRAM 4 Step EDIT TEST SPH Step shift EDIT MESSAGE CYL Step shift GALLERY AXS Step shift 4 Step shift CANCEL 63 8 1 Button operations Button operations for system configuration are introduced briefly BACK NEXT RESET 0K CANCEL Moving BACK and NEXT buttons of the touch screen are for moving page by page Up and Down arrow buttons in the mask area are for moving field by field 4 iw coo v j RDE Cancel You can be at ease when you have made unexpected mistakes Press RESET button of the touch screen to revert to original values of current paged and SHIFT button RELOAD button of the touch screen to revert to all the original values of all over the pages just before Of course RESET and RELOAD are only applicable before saving RELOAD Save and Cancel the OK button of the touch screen is to save while the Cancel button of the touch screen is to cancel Select Item Value You can select list item of each categories by using press combo box button of the touch screen If you want to change list item value press co
73. f this manual to highlight safety related information or information requiring special emphasis All user operators and maintainers must be familiar with and pay particular attention to all warning and cautions incorporated herein ANN Warning indicates the presence of a hazard that could result in severe personal injury death or substantial property damage if ignored NOTE Note describes information for the installation operation or maintenance of which is important but hazard related if ignored DAN Caution indicates the presence of a hazard that could result in minor injury or property damaged if ignored 11 2 2 Safety Symbols The International Electro technical Commission IEC has established a set of symbols for medical electronic equipment which classify a connection or warn of any potential hazard The classifications and symbol s are shown below Save these instructions Type B Isolated patient connection This symbol identifies a safety note Ensure you understand the function of this control before using it Control function is described in the appropriate User s or Service Manual Manufactured by xxxx year Manufacturer Authorised Representative in the European Community Identifies the point where the system safety ground is fastened to the chassis Protective earth connected to e EEG P conductive parts of Class equipment for s
74. finished all steps press OK button of the touch screen to save and exit Push SHIFT START button to see the program list which we composed just before and choose CUSTOM to launch this program in practice There are some hints to be able to build a program more quickly First one is how to select the auxiliary lens and the inspection item If you press the Auxiliary Lens item Aux Lenses dialogbox appear After choosing the Auxiliary Lens item required lenses can be assigns at a time 86 EDIT PROGRAM CUSTOM C STEP 1 1 m TMode NONE E NONE NONE i BIN OU Data BIBO v Fog 0 00D ENSE e Aux Lens LEFT x w Msg Creon e eo ecoo RDE 00 gg O O0 o1 er QE OE Wm o1 3E 0 12 m CANCEL The next hint is how to apply the mask shifting button is pressed after spreading VA chart right left and up down movements can be done naturally for the mask setting The last hint is the various shortcuts For example if user wants to assign the left eye to the Eye item just press the L button instead of turning the dial Similarly press the R or the OU button to assign value at a time Also if the user want assign SPH to the Data Element item press the S button The same is true for the C ADD VA BIBO and BDBU buttons to assign values at a time For Cross Cylinder values can be assigned at a time using 1 2 buttons At first glance program editing appears to be very difficult but if yo
75. for the user confirmation Almost every dialog box or menu selection supports SET button SHIFT ALT button Changes the property of the button to be pressed with or the dial to be turned TIP The SHIFT and ALT buttons play a role to logically expand the physically limited number of buttons For example if you want to execute the dual cross cylinder test normally you change the CC Type option to DUAL in system configuration menu and then press the dots group chart button However here is a simple method to push the dots group chart button and the SHIFT button continuously Then the item which can be converted to DUAL will appear in the function button area Press the SHIFT buttons and CCdual button of the touch screen to complete the DUAL cross cylinder lens setup Also the ALT button is powerful for the system unit test case In other words instead of pressing the TEST and CUSTOM buttons of the touch screen annoyingly in turn to change into the user defined test list and selecting with the dial one the ALT button with user 39 defined buttons in the chart area combination makes the execution of the user defined unit test possible Like this LDR 7800 system has arranged the function buttons very intuitively Thus it will be worth to try to make the SHIFT button with any other button combination by way of trial if necessary case by case 13 Data Modification buttons Changes the field value s
76. hand Press the BDBU button and ask the patient to measure the vertical phoria as follows Which shape is higher 4 or Ly 20 If L shape left eye with hyperphoria Turn the dial clockwise to add the BU prism till they form a cross mark If 4 shape right eye with hyperphoria Turn the dial counterclockwise to add the BD prism till they form a cross mark 180 NEZ Pola Cross w Fix R L BI vial BO 0 00 X 0 00 0 00 Y 4 0 00 v X 0 00 BD BU ecoo0 RDE SYSTEMI OC 0 15 o 0 5 99C 00 o1 90012 56 o2 99 0 3 um o P0 2 CANCEL Vision of Heterophoria Details patient I Turn the dial clockwise to add the BO OO Esophoria prism till the vertical bar comes to the center of the horizontal bar I Turn the dial counterclockwise to add O Ei Exophoria the BI prism till the vertical bar comes to the center of the horizontal bar m Press the BDBU button Turn the dial m6 Left Eye with hyperphoria Clockwise till the horizontal bar comes to I the center of the vertical bar 181 a Press the BDBU button Turn the dial I Right Eye with hyperphoria counterclockwise till the horizontal bar O comes to the center of the vertical bar O I Esophoria Correct the horizontal phoria like 1 and a Right eye with hyperphoria correct the vertical phoria like 4 o L Esophoria Correct the horizontal phoria like 1 and l Left eye with hyperpho
77. hpa For the Storage of the machine please keep the ambient temperature is 10 C 55 C humidity is 10 95 and atmospheric pressure is 700 1060hpa Avoid environments where the equipment is exposed to excessive shocks or vibrations 14 2 4 Safety Precaution This equipment has been developed and tested according to safety standards as well as national and international standards This guarantees a very high degree of safety for this device The legislator expects us inform the user expressively about the safety aspects in dealing with the device The correct handling of this equipment is imperative for its safe operation Therefore please read carefully all instructions before switching on this device For more detailed information please contact our Customer Service Department or one of our authorized representatives 1 This equipment must not be used a in an area that is in danger of explosions and b in the presence of flammable explosive or volatile solvent such as alcohol benzene or similar chemicals 2 Do not put or use this device in humid rooms Humidity should be maintained between 30 and 75 for normal operation Do not expose the device to water splashes dripping water or sprayed water Do not place containers containing fluids liquids or gases on top of any electrical equipment or devices 3 The equipment must be operated only by or under direct supervision of a properly trained and qualified person 4
78. ice Ain ee oe At Ae bee ad nat aes 14 3 POatures ATE TETTETETT TTT TTT TETT 18 4 Notes for Using the Instrument ss ssssssussesreuseursnnrnnsenrnnnrennnunnnnnnnnnnnnnnrennnnnnnn 20 5 Configurations 21 5 1 Digital Reffactor 2i ap ode nb DE EGET ed etus 21 5 2 J nction BOX JB stis dl edo ce Lead d bob Lh cud i a a pa EE 23 5 2 1 Detail Explanation ie rennen nien ert a n ie Na ite eins 23 5 3 Operation Panel OP pep egere eg ne Ren Da PERLE REG 24 5 3 1 Detail Explanation Front sidentea pag era 25 5 3 2 Detail Explanation Rear side 26 5 4 METTE CCESSOMES D M 27 5 4 1 Accessories for Digital Refractor c cceccessreseneeerereereeneeseneesneeeeateenenenaees 27 5 4 2 Accessories for Operation Panel and Junction Box sssseseess 28 5 4 3 Optional accessories ceeceeeeeeeteeeeneeeeeeceeeeceeeeaeeseeeeneeeeneeeeeeseeeeetereaeens 29 5 5 System Installations iiec eh Rn ie eese 30 Basic Operations 1 1i inni Ec nci indi aea rera dece 31 6 1 Operation of the Keypad Buttons essssssssseeeeeeemenee emen 31 6 2 Operation of the Touch Screen Buttons 42 Menu Selection eessseeeesseeeeee nennen Ea 48 7 1 Test ResUlt zc da ecd ee de cons gie deo niae dpa rends 49 7 2 System Config iin een LAO eb p eh ed bU e ed a e eni 57 T 3 Edit Drogtalti scommesse pese e C VADE aM E MU E eee 58 7 4 Edit Testenine
79. if you have normally carried out inspection using it Nevertheless it is recommended to process and prescribe in the SUBJ and FIN mode Press the PRINT button to print If Preview List is set to YES the PRINT button should be pressed once more To display the results on preview screen push SHIFT PRINT Then the summarized results will be shown either in table and graphical form on the LCD screen We will discuss printing on paper in 14 2 and printing on screen in 14 3 186 14 2 Print on the Paper If you configure options do as to carry out all the inspections and print all the results thoroughly the printing results would be of great amount However it is not the ordinary case to do all inspection and to set the printing option FULL in order to save the printing paper Thus only the necessary items will be printed but we are going to describe all the items according to the printing order for illustration There is a printing sample below the left side is the printout and the right side is the item description See chapter 13 Unit Test to know the meaning of the detailed items Name WD 40cm FAR R Date 2002 12 09 Age39 DominantEyeR PD 66 0 61 5 NEAR ID P021209 0005 M F 1 11 35 1 ou wee Unaided VA se L 200 200 400 FAR 1 50 SPH 1 75 000 CYL 0 25 90 AXS 135 4025 ADD 4025 BI 0 50 X BI 0 5
80. inute Stereo Test Objective To execute the Minute Stereo Test during the subjective test Chart Minute Stereo chart Auxiliary Lens 135 Polarizing Filter right 45 Polarizing Filter left Expectation Starting from the central fixation point clockwise the next rods pair appear to be more and more close and clear to the patient than the previous one Operation Sequence 1 To enter this mode press the Stereo Chart twice or the SHIFT button and the Stereo Chart at a time Alternately press the TEST button and then select Minute Stereo Item of the touch screen to execute this test 2 Ask the patient as follows How do you see the rods from the upper rods in 12 oclock direction to 3 6 and 9 oclock directions one after another with the fixation point at the center 3 If the rods in 12 and 3 o clock directions appear stereoscopically the patient can recognize up to 1 arc minute Press the 1 button of the touch screen to set 1 arc minute 4 If the rods in 3 and 6 o clock directions appear stereoscopically the patient can recognize up to 2 arc minutes Press the 2 button of the touch screen to set 2 arc minutes 5 If the rods in 6 and 9 o clock directions appear stereoscopically the patient can recognize up to 4 arc minutes Press the 4 button of the touch screen to set 4 arc minutes 6 f the rods in 12 o clock direction and the central fixation point appear stereoscopically the patient can r
81. king The Visual Acuity for Left Eye 125 124 11 Balancing Binocular VISIO o cce eee e odor 126 12 1 12 Checking The Visual Acuity for Binocular Vision 126 12 1 13 Horizontal Coincidence Test at Far 127 12 1 14 Vertical Coincidence Test at Far ssssssssssseeneeene 128 12 1 15 Near Addition Test with Fused Cross Cylinder Lenses 129 12 1 16 Near Visual Acuity Test nennen 130 12 1 17 Near Horizontal Vertical Von Graefe TeSt ccccccccccseseeececeseeeeeeeeeseeeuaaes 131 13 System Providing Unit Tests essen nnne 132 13 1 Near Visual Acuity Tests ed encontre t ertet dde 135 13 2 Near Point of Convergence Test sssssssssseeeeenenen emere 135 13 3 Near Point of Accommodation Test 137 13 4 Near Addition Test with Fused Cross Cylinder Lenses s es 138 13 5 Negative Relative Accommodation Test sess 140 13 6 Positive Relative Accommodation Test ssssssssseeeeeee 141 13 7 Negative Relative Convergence Test sssssssseseeeeeeeeee 143 13 8 Positive Relative Convergence Test 145 13 9 Cylinder Axis Test ee E enne ehe ite irte Pr bee e E E be d 146 13 10 Cylinder Power Test a nee co rc oe PE OE Ee En ger ERR e ER P ee ED 148 13511 Red Green Test oe eee E EE Mie PR 149 13 12 Jackson Cross Cylinder Test sssssssssseeeeeneeenenenenen nennen 151 13 13 Dual Gros
82. kspace Return Shift fa SAVE gt EXIT Backspace 98 You can erase the part of or whole message by using 0 or D button When you press 0 button the letter before the cursor is deleted and when you press button the letter on the cursor is erased 0 button erases the character on the cursor position and the remaining characters move forward one by one D gt button erases the previous letter on the cursor position and the remaining characters including cursor position move forward one by one You can move the cursor by using the arrow buttons 1 i coo RDE ED 99 10 3 Editing Program Name We recommend that you rename the user defined program to prevent confusion For example if you name CUSTOM A Children PROGRAM you can easily understand the program It is better to understand to use My Own Standard rather than CUSTOM B Press MENU and select Edit Message and Program Name in order to edit the user defined program name Select the program name of the touch screen you want to edit When you select CUSTOM A the initial program name CUSTOM A display on the Message area of the virtual keyboard The maximum character size of program name is 17 1 2 EDIT MESSAGE PROGRAM NAME PROGRAM NAME TEST NAME SHOP NAME TEST RESULT STANDARD v SYSTEM CONFIG CUSTOM A CUSTOM B EDIT PROGRAM CUSTOM C EDIT TEST CUSTOM D EDIT MESSAGE CUSTOM E GALLERY CUSTOM F CUS
83. l the data are to be 00 01 9C 12 um 01 JE 0 12 m CANCEL 8 Print Load and Mode Selection buttons Prints the measured results Prints the results from other instruments if appropriate system option is set By setting the system option Auto Clear as YES the whole test results are cleared automatically after printing out as just the way the CLEAR button works Changes mode by pressing the following buttons UA unaided visual acuity mode LM LM mode RK RK mode SUBJ SUBJ Subjective mode FIN final prescription mode Press the corresponding button with SHIFT if you are to change mode and load data simultaneously In the standalone system if either RK or LM button is pressed the latest transmission datum is automatically loaded 36 Receives data from the RK LM by pressing the LOAD button LOAD DATA Transfered Data 0 00 ii 0 00 RK 0 Database SUBJ Recent 0 00 v X ecoo RDE SYSTEMI OC 0 15 O0 01 9Co012 So Wm o1 3E 0 12 m CANCEL The transferred data to LDR 7800 system will be queued in regular sequence and the received data list up to now can be verified by selecting LM and RK in Transferred Data item after pressing the LOAD button When there is no data if the LM or RK button is pressed or LM and RK field is selected in the Transferred Data there will be beep sound twice to give warning Therefore examine network connection in
84. mbers are clearer on the green or red ecoo SYSTEMI OO o3 9C a1 um o CANCEL 3 Let s enter the third step Similarly press the ADD button to add the new display for the user defined program Push the Dots Group Chart in this display and the Chart item to Dots Group After selecting the chart subsequently choose the Test Mode Dist combo box button of the touch screen and select FAR Likewise choose the Eye item combo box button and select RIGHT Afterward select the Cross Cylinder item combo box button and select 0 25 83 EDIT PROGRAM CUSTOM A STEP 3 3 See TMode NONE Data AXS vy Fog NONE v Name Q AXS Which figure is clearer 1 or 2 SYSTEMI PAGE CANCEL 4 The 4th step Also press the ADD button to add a new display for the user defined program Push the Dots Group Chart in this display Because we are planning to measure not AXIS but CYL push the Dots Group Chart once more to change the Test item and the Chart item to Dots Group At this moment assign the Test Mode Dist Eye and Cross Cylinder items like 3 84 EDIT PROGRAM CUSTOM A STEP 4 4 TMode NONE Name ecoo 00 31 9C o012 um o PAGE CANCEL 5 Thisis the 5th step Repeat the procedures in 1 85 EDIT PROGRAM CUSTOM A STEP 5 5 I 1 1 I BRE RCM XC 63592 1 2 359261 5 Data SPH vy Fog RIGHT v Name Nu RIGHT PAGE CANCEL Since we have
85. mbo box button locate in list to change Then Combo box button will be appears to expand And select item value to change among kind of list item Then At one time will be disappears expanded combo box and will be changed item value 64 5 6 TEST ENVIRONMENT 1 TEST RESULT Beep Sound SYSTEM CONFIG Screen Off 5 min Test Time Start ENTERING SUBJ BEGINNING TEST EDIT PROGRAM Date Display IM DD hh mm 12H EDIT TEST Date YY MM DD EDIT M Time hh mi ss GALLERY MM DD hh mm 12H CANCEL 8 2 65 Description of Options Let s find out which options are provided by each page 8 2 1 m Page 1 LENS amp DATA MANIPULATION 1 SPH step sets the basic step for a SPH value Choose one among 0 12D 025D and 0 50D Default value 0 25D CYL Sign sets the basic sign for a CYL value Either or sign if accepted Default is In the Main screen Press the C button and press CYL button of the touch screen or ALT C to change the default sign for a short time and then the sign will be reversed i e gt gt in moment Press the same button combination one more time to return the original sign AXS Step sets the basic step for an AXIS value Choose one among 1 5 and 15 Default value is 5 A Step sets the basic step for a prism value Choose one among 0 1A 0 2A and 0 5A Default value is 0 5A SPH Step SHIFT sets the basic step for a SPH val
86. me 5 spots PEUT Flickering Alternately Red and green are seen at the same suppressed time 166 13 21 Schober Test Objective To execute a phoria test during the subjective test using the Schober chart Chart Schober chart with CCP 3100 CDC 4000 only Auxiliary Lens Red Filter right Green Filter left Binocular Rotary Prism Expectation To make the cross mark for the right eye placed the center of the circle Operation Sequence Press the Schober chart to enter the Phoria mode Alternately press the TEST button and then select Schober Item of the touch screen to execute this test Ask the patient as follows Can you see a red cross mark in a green circle If Yes finish this test since the patient has no phoria If NO continue this test since the patient has phoria Ask the patient as follows Is the cross mark to the left or right of the circle If Right internal phoria Esophoria Turn the dial clockwise till the cross mark falls to the center of the circle If Left external phoria Exophoria Turn the dial counterclockwise till the cross mark falls to the center of the circle Ask the patient as follows Is the cross mark over or under the circle If Over left eye with hyperphoria Press the Schober chart or the BDBU button once more and then turn the dial clockwise till the cross mark falls to the center of the circle If Under the right eye with hyperph
87. mission datum is automatically loaded You don t need to press LOAD RK SET buttons consequently 9 Open Close the test window buttons Opens or closes the test window For the pinhole test press the SHIFT button and the OPEN CLOSE left for L or OPEN CLOSE right for R button at the same time 10 Eye selection buttons R L OU Selects eye to inspect To set the dominant eye press SHIFT R Right eye or SHIFT L Left eye 11 Chart Mask buttons Masks the chart in a vertical horizontal dot unit Moves the mask right left up and down Can be used as the button for the cursor movement in configuration menu ALT 0 switches the Operation Panel to Landolt Ring chart support mode where all the chart buttons for Snellen Letter work for the Landolt Ring chart of the same Visual Acuities ALT 04 switches the Operation Panel to Snellen Letter chart support mode where all the chart buttons for Landolt Ring work for the Snellen Letter chart of the same visual acuities 38 ti Rx 70 DE ax dE Nut ILES FG TIP There are arrow buttons in the mask area and the role of them is generally overlapped without the case of mask setting For instance when you are moving the cursor in system configuration you can push either the arrow buttons in the mask area Likewise the SET buttons in the mask area can be pressed for setting up LDR 7800 system provide SET button
88. nce chart twice or SHIFT and Coincidence chart at a time Alternately press the TEST button and then select Vert Conincidens Item of the touch screen to execute this test Ask the patient as follows Can you see the square with a point at the center Are the upper or lower sides of the right and left frames aligned If the right one is higher left eye with hyperphoria Turn the dial clockwise to add the BU prism till the two frames are aligned If the left one is higher right eye with hyperphoria Turn the dial counterclockwise to add the BD prism till the two frames are aligned If you are satisfied with the test result press the OK button of the touch screen to save or the CANCEL button of the touch screen to discard the result Continue this test by asking the following question if necessary Can you see the square with a point at the center Are the two frames of the same size or not n L If Yes the patient has no aniseikonia Press the OK button of the touch screen to select OK If No the patient has aniseikonia Press the NG button of the touch screen to select NG 176 5 z A JE E R L UD BD oa BU bu A 0 00 v 0 00 0 00 sI Bo 223 i 0 00 sptsu FAR amp sS C Vert Coincidens 0 00 X 0 00 OC 2 15 o0 o2 ecoo RDE SYSTEM1 mn oo 0 E 1 00 01 9Ca12 wm o1 3E 0 12 P0 2 CANCEL 13 26 Polarized Cross Test Objective To execute a phoria test during the
89. nd graphical forms including the keratometry measurement if available System Config For the system configuration You can set up all sorts of values related to the system Edit Program For creating or modifying a user designable pre programmed sequences up to 10 Edit Test For creating or modifying a user designable unit test that can be assigned in one of the 35 chart buttons on the Operation Panel The user designed unit test may executed by pressing the user assigned button and the CUSTOM button of the touch screen So it never erase any system providing unit test when the user assigns a new user designed test in a certain chart button Edit Message For editing various kinds of messages used in the Operation Panel You can edit the name of the user designed program the user designed unit test the test guide message and the shop name The shop name is the message that is printed on the bottom line of the printout including that of CDRMate Gallery For showing various kinds of near charts in the Operation Panel 49 TEST RESULT SYSTEM CONFIG EDIT PROGRAM EDIT TEST EDIT MESSAGE GALLERY CANCEL 7 1 Test Result If Test Result of the touch screen is selected or pushing the SET button after selecting the desired item use the arrow button or dial the results can be verified by four ways in each near and far mode Toggling near or far mode can be processed using the function button FAR or NEAR
90. ng the equipment Do not force cable connections If a cable does not connect easily be sure that the connector plug is appropriate for the receptacle socket If you cause any damage to a cable connector s or receptacle s let the damage s be repaired by an authorized service technician Please do not pull on any cable Always hold on to the plug when disconnect cables This equipment may be used for the international application related to Visual Acuity Test Astigmatism Test Phoria Test Stereo Vision Test according to this manual Before every operation visually check the equipment for exterior mechanical damage s and for proper function Do not cover any ventilation grids or slits Immediately turn off and unplug any equipment that gives off smoke sparks strange noises or odors Battery Serving Danger of explosion if battery is incorrectly replaced Replace only with the same or equivalent type recommended by the manufacturer Dispose of used batteries according to the manufacturer s instructions 16 18 19 20 21 22 Use only with LUXVISION Model Digital Refractor LDR 7800 B Power supply when Operating the LDR 7800 and LDR 7800 OP For Instruments with 115 or 230 input Voltage Switch be sure to set the input voltage switch to the voltage of the area where the instruments is being used Otherwise it may result in fire or electric shock Be sure to disconnect power cord before connecting o
91. nlight or very bright indoor lights can influence the results of measurements If you want to connect this with other equipment consult the dealer Sudden heating of the room in cold areas will cause condensation of vapor on the protective glass in the measurement window and on optical parts inside the instrument In this case wait until condensation disappears before performing measurements Keep clean the objective glass of the examinee side If it is stained with other substance it may cause an error or inaccurate measurements Don t use organic solution such as thinner benzene etc to clean the surface of this instrument It may damage the instrument Disconnect the power supply and consult the dealer in case of smoke strange odors or noise during operation 21 5 Configurations The three basic components of the LDR 7800 system are Digital Refractor Junction Box and Operation Panel In this chapter component lists and functions are explained one by one Also various accessories are summarized in the later part 5 1 Digital Refractor Digital Refractor is most important part of the LDR 7800 system and it is installed on a unit table like the LUXVISION CRT or CST series models PD amp Convergence Controller Part the part which controls a pupil distance PD and the near point convergence Q Disk Controller Part the parts which control the disks and the disk lenses amp VD Vert
92. not YES or NO can be chosen Default value is NO If all of the print options 1 through 4 are set to OFF or NO the internal printer prints out nothing Preview List specifies whether the results will be shown or not when the PRINT button is pressed YES or NO can be chosen Default value is YES Auto Clear specifies whether the test results will be initialized or not when the PRINT button is pressed YES or NO can be chosen Default value is YES SYSTEM CONF IG EDIT PROGRAM EDIT TEST EDIT MESSAGE GALLERY B B PRINT OPTION 1 Print Subjective Print Objective Print Kerato Data Print A Test Data Preview List Auto Clear CANCEL 75 76 9 9 1 Editing User Designable Program amp Test If user designable programs are made matching for the doctor to use them and the purpose of the program in advance the training cost will be greatly reduced and the inspection will be processed more quickly You will catch two hares at a time Unit test can be reformed to operator s capabilities and thus provides amazing enlargement So you can benefit from this For example when using the Dual Jackson Cross Cylinder you can re define familiar number chart on behalf of the boring Dots Group chart for Unit Test Program Editing function is divided into two parts User Defined Program and Unit Test Program Since the Unit Test is thought of as a 1 step user designable program if you could edit user design
93. nter ADD mode if there is near sightedness regardless of long sightedness FAR SUBJ FAR 1 00 0 00 0 0 00 0 00 0 00 ec oo RDE OO o3 9Cco32 um o3 1 o LI WD and AGE buttons of the touch screen will be shown in function button area bottom of the LCD screen when you enter the near vision mode including ADD mode At this moment if the SHIFT button is pressed basic WD Working Distance values 35 40 50 60 and 70cm will be displayed on the screen Set relatively large value for average western people who usually have long arm otherwise small value for eastern people WD is also provided for direct minute input 113 Far SUBJ FAR 0 00 0 25 0 25 0 50 0 50 Br 0 A 95 0 00 A NN ann A 00 Working Distance gt lt 0 00 0 00 60 cm RDE OC 0 15 CANCEL You can make a choice under your condition Age data can be inputted after the AGE button of the touch screen is pressed LDR 7800 system also provides automatic increase and decrease of the tilting angle which result in saving of measurement time 114 FAR SUBJ FAR 0 00 0 fai as 0 50 0 50 as 8 0 0 00 mr Noe Patient 0 00 atien ge a z 45 year s ecoo RDE OC 0 15 OO o3 O9Cco ads um o3 AE B aem 30 years 40 years 50 years 60 years 70 years CANCEL After entering the near vision mode including ADD mode you measure how much degree your patient can see the chart by l
94. one left eye with hyperphoria Turn the dial clockwise to add the BU prism till the two rods are horizontally aligned 8 After finishing this test press the OK button of the touch screen to save each results of phoria tests is maintained separately or the CANCEL button of the touch screen to discard the result 172 Far amp s 0 00 SPF C 00 R L A 0 BI oia BO 0 00 x 0 00 0 00 Y 4 0 00 0 00 _Bi B0 0 00 vy X 0 00 sptsu 0 00 Yert Yon Graefe RDE PEOCT OC 0 15 30 o2 0 15 8 NDA WE 9 15 5 a 6 EEEN 0 PRESET P0 2 j CANCEL 13 24 Horizontal Coincidence Test Objective To execute the Coincidence and a horizontal phoria test during the subjective test using Coincidence chart Chart Horizontal Coincidence chart Auxiliary Lens 135 Polarizing Filter right 45 Polarizing Filter left Expectation The upper frame for the right eye and the lower frame for the left eye form an ideal square Operation Sequence nuo 173 To enter this mode press the Coincidence chart Alternately press the TEST button and then select Hor Conincidens Item of the touch screen to execute this test Ask the patient as follows Can you see a square with a point at the center Are the right and left sides of the upper and lower frames aligned with each other If the upper one is to the right of the lower one esophoria Turn the dial clockwise to add the BO prism till the
95. or L button to enter monocular test mode and then modify SPH according to the patient s condition Operator can take the next step if all the adjustments have been finished and the patient s monocular visual acuity is matched for the best NETS LM FAR wi D 0 00 0 00 0 0 00 0 00 0 00 cans Wi NH OOCOO 0 8 OOOCO 0 9 09000 1 0 am ecoo RDE 00 o oco 9 um o 3E 0 12 ns Hm Ben 605 o era F0G RETINO 121 12 1 2 Jackson Cross Cylinder Test AXIS for Right Eye The second step is to calibrate the AXIS value for the right eye minutely on the base of the resultant SPH CYL AXIS values from step 1 Press the 1 2 buttons that toggles the lens flipping during Jackson Cross Cylinder Test and ask which status appears clearer If turn the dial to the direction counter clockwise and if to the direction clockwise Repeat this procedure until the patient sees and O even See 13 12 Jackson Cross Cylinder Test L FAR LM FAR 0 00 0 00 0 00 v 0 0 00 0 00 0 00 0 00 ecoo RDE OO 31 9C o2 Wm 01 0 12 m ELIT Ben s05 o 1 122 12 1 3 Jackson Cross Cylinder Test CYL for Right Eye The third step is to calibrate the CYL value for the right eye minutely on the base of the resultant SPH CYL AXIS values from step 1 Press the 1 2 buttons that toggles the lens flipping during Jackson Cross Cylinder Test and ask which status appears clearer I
96. oria Press the Schober chart or the 167 BDBU button once more and then the dial counterclockwise till the cross mark falls to the center of the circle 10 After finishing this test press the OK button of the touch screen to save each result of phoria tests is maintained separately or the CANCEL button of the touch screen to discard the result o 0 00 s 0 00 0 00 c 0 00 0 A 0 Schober R L 0 00 x 4 0 00 0 00 Y 4 0 00 0 00 Bi Bo 0 00 0 00 sptsu 0 00 SYSTEM1 CANCEL 168 Vision of patient Heterophoria Correction Method bin pos EL Turn the dial clockwise to add i abii EE the BO prism till the cross Esophoria P mark comes to the center of the circle The cross mark is to the left i Turn the dial counterclockwise of the circle i to add the BI prism till the Exophoria cross mark comes to the center of the circle The cross mark is over the Press the BDBU button and turn the dial clockwise till the circle Left E ith h hori SHEER IDEM cross mark comes to the center of the circle The cross mark is under Press the BDBU button and the circle i i j Right Eye with turn the dial counterclockwise j hyperphoria till the cross mark comes to the center of the circle 13 22 Horizontal Von Graefe Test Objective To execute a horizontal phoria test using the Von Graefe chart Chart Horizontal Von Graefe chart Auxiliary Lens 6
97. oria and the coincidence test optional and then record the test results See 13 25 Vertical Coincidence Test for further information NETS Vert Coincidens R L Da BD ost BU ba 0 00 X 0 00 0 00 Y 0 00 Si DX Mom emo RDE mn gem 88 999 oS 00 o3 9Co um o1 3E 0 12 m 3 E 2 CANCEL 129 12 1 15 Near Addition Test with Fused Cross Cylinder Lenses It checks the Cross Grid Accommodation in near mode According to the guide increase or decrease the ADD value See 13 4 Near Addition Test with Fused Cross Cylinder Lenses FAR LM FAR amp 0 00 0 00 0 0 00 0 00 0 00 RDE SYSTEMI OC 0 15 fere 130 12 1 16 Near Visual Acuity Test It performs the Near VA with ADD test See 13 1 Near Visual Acuity Test FAR LM FAR Wl 0 00 0 00 0 0 00 0 00 0 00 ans Wi NH Ses GEG o 1 131 12 1 17 Near Horizontal Vertical Von Graefe Test It performs Near Distance Horizontal and Vertical Von Graefe Test According to the guide do the phoria test See 13 22 Horizontal Von Graefe Test and 13 23 Vertical Von Graefe Test Hor Von Graefe amp S C MC E R L A BI oia BO 0 00 YCD 0 00 0 00 amp r Bo 23 m 0 00 sptsu 0 00 x 4 0 00 ecoo RDE SYSTEMI CEECEE OC 0 15 00 91 905 12 56 o2 wm o1 Seow WE 9 s EE CEEE see D LLL PRESET P0 2 E CANCEL Now we have completed the standard tests including monocula
98. owering the rod with near distance chart Additional spherical power can also be inserted necessary 11 5 Other Temporal Examination Modes Also there are some useful temporal modes to aid both the examiner and the examinee 11 5 1 PRESET Mode 115 The PRESET mode is to aid the examiner to preset RK LM data without inserting or changing lenses in the Digital Refractor This makes patients comfortable especially when the RK LM data is input manually because there is no auto ref keratometer orauto lensmeter connected to LDR 7800 system You can input S C A ADD VA Prism data in this mode Pressing SHIFT SET buttons make it enter the PRESET mode with the signal PRESET displayed on the left top of the screen After seeing that you can set the necessary values freely moving around several data items After all the field values are assigned press SHIFT SET one more time to exit PRESET mode and let the Digital Refractor load lenses all at once based on these pre set values SUBJ FAR 0 25 0 50 95 0 00 0 00 0 00 116 11 5 2 AUX OFF Mode AUX OFF mode temporarily removes auxiliary lenses such as polarized red green fixed cross cylinder GABU and 10ABI during system provided unit tests especially Binocular Balance Polarized Red Green and Stereo tests It will provide great efficiency when you want to remove auxiliary lens for a while to explain your patient procedures on measurement If
99. prints the 2 Data from Keratometry or NO doesn t print it Print ATest Data assigns either YES prints the information about prism among 6 Data from Binocular Visual Function Test or NO doesn t print prism related data 192 B B PRINT OPTION TEST RESULT Print Subjective SYSTEM CONFIG Print Objective Print Kerato Data EDIT PROGRAM Print 4 Test Data EDIT TEST Preview List EDIT M Auto Clear GALLERY CANCEL 14 3 Print on the Screen If SHIFT PRINT button is pressed the summarized information will be shown on the LCD screen LDR 7800 system shows the results divided into NEAR and FAR in a condensed from and helps display conversion by using function buttons See 7 1 Test Results for more information about summary result on screen f you want to print on the paper when looking at summary result on the screen just press the PRINT button once more Also press the CANCEL button of the touch screen or the ESC button to return to the main screen 193 15 Maintenance 15 1 Replacing Printing Paper Replace the roll of printing paper as soon as possible after the red line appears on the paper according to the procedure below 1 Tilt the LCD monitor 90 degree to open the printer cover 2 Pull the opening button on the top of printer cover 3 Pull the remaining paper out 4 Load a new roll of paper into the printer case 5 Checkthe printing side smooth side must face upsid
100. put for LDR 7800 JB in the region of North America under the authority of UL 18 3 Features 10 Using standard protocol CAN all appliances are connected by daisy chain line As a result LDR 7800 system makes office environment more clean and modest Because 1 or more up to 8 LDR 7800 system and 1 or more up to 4 each LM RK are connected without any additional equipment high utilization and low cost can be achieved Compatibility between LUXVISION products enables to manage patients data more easily For example not only S C A value but also KER PD data are gathered automatically from RK Also S C A value prism additional power data are gathered automatically from LM All of these data are presetting to the LDR 7800 system without manual control LDR 7800 system supports near PD 48 80mm and near working distance 5b0 74cm so you can execute perfect near vision tests Separated Dual Cross Cylinder lens and automatic occlusion during lens change makes more accurate test result For accurate Phoria and Strabismus test LDR 7800 system support prism measurement by 0 1D unit up to 20D unit Also automatic occlusion during prism change minimizes the examinee s eye adaptation On line guide assist examiners to finish test fast and convenient To analyze result at a glance LDR 7800 system supports table and graphic result display facilities Built in high speed printer saves additional space to install printer
101. r correction right gt monocular correction left gt Binocular Balance Test gt Binocular Visual Function Test gt near distance test 132 13 System Providing Unit Tests There are total 29 system providing unit tests available in LDR 7800 system If you press TEST button you can see the following list We describe here each test to be referred to for the real optometry process 1 13 EXECUTE TEST 1 n 3 dH 3 6 7 HB NS 10 11 12 13 N ao NONE TEST RESULT Near VA with ADD VA NONE v n 3 NONE STEM CONFIG Near Point of Convrg NONE NONE EDIT PROGRAM Near Point of Accomm NONE NONE EDIT TEST Near ADD NONE NONE EDIT MESSAGE Negative Relative Accomm NONE NONE GALLERY Positive Relative Accomm NONE NONE Negative Relative Convrg NONE Near VA with ADD Near Visual Acuity with Additional Spherical Power Test Near Point of Convrg Near point of Convergence Test Near Point of Accomm Near point of Accommodation Test Near ADD Near Distance Additional Spherical Power Using Cross Grid Test Negative Relative Accomm Negative Relative Accommodation Test 133 Positive Relative Accomm Positive Relative Accommodation Test Negative Relative Convrg Negative Relative Convergence Test Positive Relative Convrg positive Relative Convergence Test Cylinder Test Power Cylinder Power Test Cylinder Test Axis Cylinder Axis Test Red Green Test monocular Red Gr
102. r disconnecting the cables especially cables from LDR 7800 JB to refractor body Otherwise the cable may be damaged which may result in fire or electric shock on the circuitry This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to other devices in the vicinity However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to other devices which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving device Increase the separation between the equipment Connect the equipment into an outlet on a circuit different from that to which the other device s are connected Consult the manufacturer or field service technician for help External equipment intended for connection to signal input signal output or other connectors shall comply with relevant IEC standard e g IEC 60950 for IT equipment and IEC 60601 series for medical electrical equipment In addition all such combinations systems shall comply with the standard IEC 60601 1 1 Safety requirements for medical electrical systems Any person who connects external equipment to signal input signal output or other connectors has formed at s
103. r to the system defined program For convenience s sake we will confine the step resolving S C A value gt Red Green balance Test gt Cross Cylinder Test using Dots Group Chart AXI S gt Cross Cylinder Test using Dots Group Chart Cylinder gt Refining the Spherical P ower for Perfect Correction 1 Press the Letter Chart in initial display Then the Test item changes to VA 81 Letter and the Chart item to Letter 6 Choose the Test and turn the dial to change Test and Chart Items The simplified method is that press the Chart button of the touch screen and turn the dial to assign BIN OU Notice that the Mask buttons cannot be used to move within menu after the VA Chart is selected EDIT PROGRAM CUSTOM A STEP 1 1 596231 0 IRL NONE Y x NONE 63592 1 2 359261 5 SPH v Fog 0 00D Name Number 3 OO o3 9Co012 I M I CANCEL 2 Now that the initial setting has been finished let s start the second step by press ADD button of the touch screen to add a new display step for the user defined program Push the Red Green Balance Chart in this display and then the Test item will be changed to Red Green Test and the Chart item to Red Green After selecting the chart subsequently choose the Test Mode Dist item in the left window and turn the dial to assign FAR Likewise choose the Eye item and turn the dial to assign BIN OU 82 EDIT PROGRAM CUSTOM A STEP 2 2 UH Fog Name Mich nu
104. rcial IEC 61000 4 8 or hospital environment Note Ur is the a c mains voltage prior to application of the test level Table 3 Guidance and manufacturer s declaration electromagnetic immunity The LDR 7800 is intended for use in the electromagnetic environment specified below The customer or the user of the LDR 7800 should assure that it is used in such an environment Immunity test IEC 60601 test level Compliance Electromagnetic environment guidance level Portable and mobile RF communications equipment should be used no closer to any part of the SYSTEM including cables than the recommended separation distance calculated from the equation Conducted RF 3 Vrms 3V applicable to the frequency of the IEC 61000 4 6 150 kHz to 80MHz transmitter Recommended separation distance Radiated RF 3 Vrms 3V m IEC 61000 4 3 80MHz to 2 5GHz d 2 2WP V d ZIP 80MHz to 800MHz 1 d LWP 800MHz to 2 5GHz 1 Where P is the maximum output power rating of the transmitter in watts W 207 according to the transmitter manufacturer and d is the recommended separation distance in metres m Field strengths from fixed RF transmitters as determined by an electromagnetic site survey should be less than the compliance level in each frequency range Interference may occur in the vicinity of equipment marked wigh the following symbol t9 Recommended separation
105. ria correct the vertical phoria like 3 I Exophoria Correct the horizontal phoria like 2 and O Right eye with hyperphoria correct the vertical phoria like 4 es O Exophoria Correct the horizontal phoria like 2 and l Left eye with hyperphoria correct the vertical phoria like 3 13 28 Stereo Test Objective To execute the Stereo test during the subjective test Chart Stereo chart Auxiliary Lens 135 Polarizing Filter right 45 Polarizing Filter left Expectation The upper rod for the right eye appears to be closer to the patient than the lower rod for the left eye Operation Sequence 1 Press the Stereo Chart to enter this mode Alternately press the TEST button and then select Stereo Item of the touch screen to execute this test 182 2 Ask the patient as follows Which rod appears closer the upper or the lower 3 If the upper one There is no problem in stereo visual acuity Press OK button of the touch screen to mark OK 4 If the lower one The patient could have stereo visual acuity but there might be analysis problem Press NG button of the touch screen to mark NG no good 5 If Neither the patient cannot have stereo visual acuity Press NG button of the touch screen to mark NG no good Closer li Further amp S C A 0 00 Bi B0 0 00 sptsu ecoo RDE SYSTEMI Oc 0 15 OO o3 O9Cco 26 o2 IT ES eed WE ud 183 13 29 M
106. s spare of time to start from initial mode and change modes several times But if you consider the following situation you would know that such modes are extremely useful 11 1 1 Scenario First optometrist measures the patient s eyes with RK and examines his her glasses with LM Let s think about the following situation 1 When you measure your patient s visual acuity with RK you cannot understand the importance of the modes at this stage Change the S C A values in this order after the patient s state 2 All of a sudden if you want to know the data from RK during the subjective refraction Without the aids of the powerful mode conversion you should use a sheet of paper and a pencil at your hand or printout inconveniently because the measured values of LCD screen beforehand have already been overwritten However with your smart LDR 7800 system just press the RK button and change into RK mode then you can check the RK data with ease and convenient manner 107 24 04 01 49 PM FAR LM FAR Wmo D 0 25 0 50 95 0 00 0 00 0 00 cans D NH 3 Now you curiously want to glance over the data from LM As you know by simply applying 2 just press the LM button right now to change mode and then read the data from LM That s all enough 24 04 01 54 PM FAR RK FAR 4 In the same way you can allocate the other mode on the subjective optometry that changes the S C A values directly Pressing the
107. s Cylinder Test even Sek gen qd e pee edi inn pe ede 152 13 14 Gross Grid Test for Distance 4 inei tea n eL deed 154 13 15 Dominant Eye Test for Phoria sssssseeeeeneneneem emen 156 13 16 Horizontal Maddox Testinin rne erre eed ie rep te dy 156 13 17 Vertical Maddox Test n pecie eterne egenis dee ne de 158 13 18 Polarized Binocular Balance Test sse 159 13 19 Polarized Red Green TeSt ccccccesceccccccecueecccceceeueeececeeseusaaeeseceeuuaaeeeeeeeeeuaaes 162 13 20 Worth 4 Dots TeSt ierg eri enr ie pe e P e eR rx eda 164 13 2 T Schober Test RR UE i edn 166 13 22 Horizontal Von Graefe Testis oidini e ten need te een 168 13 23 Vertical Von Graefe Test eene nennen 171 13 24 Horizontal Coincidence Test esssssssseeeeeeeeeeeennen nennen rennen 172 13 25 Vertical Coincidence Test eene nne 174 13 26 Polarized Cross Test one ev oN Rei oy ea 176 13 27 Polarized Cross Test with Fixation Point sessseee 178 13 28 Stereo Test iore error rene rre ee ra kr idee e ERR ERR SER eaa 181 13 29 Min te St r o Test eie Pre ease sue dens eec are dee a pda arcu do 183 14 Examination Results and Printout eeeeseeeeeeeeeeenennnnnennnennnnnn 185 Tle SHOW O PFIDE pier he aterert i fer erbe cbe deuda e Pee te a R ctn 185 142 Printon the Paper e ne e ete it ge nite 186 14 3 Print on the Screen nennen rennen nnne enne 192 15
108. screen to execute this test Press the R L OU button to select the field to measure Change the ADD value till the horizontal and vertical rods have the same clarity and width Write down each result for the right and left eye and for the both eyes Turn the dial clockwise direction if the vertical bar is seen more clearly Turn the dial counterclockwise direction if the horizontal bar is seen more clearly 966 sen Gen 606 140 13 5 Negative Relative Accommodation Test Objective To measure the Negative Relative Accommodation Test during the subjective test Chart Near Distance chart Auxiliary Lens None Expectation To obtain BLUR and RECOVERY value for the right or left eye or for both eyes Operation Sequence W gt NPA Press the N ADD button and then the NRA button of the touch screen Alternately press the TEST button and then select Negative Relative Accomm Item of the touch screen to execute this test Press the R L OU button to select the field to measure After pressing the BLUR button of the touch screen place the Near Distance chart with 1 0 VA 20 in 20 20 6 in 6 6 to 40cm away position from the patient s eye Turn the dial to find the spot where the letters on the chart start to fade away If the break spot has been found press the RECOV button of the touch screen to enter recovery mode Find the recovery spot while turning the dial clockwise
109. select Dominant Eye for Dist Item of the touch screen to execute this test 2 Ask the patient to which direction the Fixation point follows red or green 3 If Red the right eye is dominant 4 If Green the left eye is dominant 13 16 Horizontal Maddox Test Objective To execute a horizontal phoria test during the subjective test using the 157 Maddox Rod Chart Maddox Rod chart Auxiliary Lens Horizontal Maddox right Rotary Prism left Expectation The vertical rod for the right eye is united with the Maddox Chart for the left eye Operation Sequence Press the Maddox Chart to enter the Maddox Rod Test mode The prism change window is presented in the left top area and the Guide Window in the right top area Alternately press the TEST button and then select Hor Maddox Rod Item of the touch screen to execute this test Turn the dial till patient says that the rod is united with the dot If the vertical rod comes nearer to the right of the dot turn the dial clockwise direction nan If the rod comes nearer to the left of the dot turn the dial counterclockwise direction This test is ended if the rod is united with the dot 158 Q e FAR G S 2 C Streak Streak Ie c el s Dial A Hor Maddox Rod 0 00 X 0 00 0 00 Y 0 00 0 00 Bi B0 v x 0 00 sptsu ET aS Luli SYSTEMI 00 o1 oCo OS I D E P0 2 CANCEL 13 17 Vertical Maddox
110. senting device to the Junction box with 4 pin CAN interface cable Connect the power cord to the Junction Box Before turning on the power make it sure to check the voltage setting of the Junction Box Turn on the power of the chart presenting device Turn on the power switch of the Junction Box Wait until the Digital Refractor finishes initialization sequence Z caution Do NOT use other cables except supporting cables 24 pin DVI cable 15 pin D SUB cable 4 pin cable 31 6 Basic Operations LDR 7800 system is constructed to manipulate essential functions using the dial the buttons and the touch panel buttons on the operation panel The dial the buttons and the touch panel buttons have almost same functions As user like to do can manipulate it with ease 6 1 Operation of the Keypad Buttons As we started before the operation panel is designed to divide button area into several groups and consequently you can handle it with ease Let s examine the commonly used operation methods in advance and then explore the button descriptions with more detail manner PROGRAM 32 1 Escape button ESC Returns to the main display after escaping from the current menu TIP This button is useful if you are confused to find the exit method in certain dialog or screen On behalf of pressing some buttons aimlessly to exit with luck LDR 7800 system provides the ESC button consi
111. should be skipped To balance the two eyes ask the patient according to the guide on the display cut down the power on the clearer seeing eye until the patient reports equal blurriness But in case it s impossible to achieve equal blurriness leave the dominant eye with a bit clearer vision FAR LM FAR EEUES 5362 c 6253 0 00 CIEE 0 00 0 0 00 0 00 0 00 S362 6253 EEE ecoo RDE OC 0 15 00 o1 905 12 56 o2 nm s wm o1 Seow WE ooc00 1 909CO 0 99000 1 0 FOG PF 30 RETINO 12 1 12 Checking The Visual Acuity for Binocular Vision 127 Now we finished the binocular balance test verify the right and left spherical power one more time Use mask for the foregoing inspection if necessary 12 1 13 Horizontal Coincidence Test at Far It performs an inspection using the horizontal coincidence chart among the binocular tests According to the guide execute the phoria and the coincidence test optional and then record the test results See 13 24 Horizontal Coincidence Test for further information FAR Hor Coincidens R L Bl oiai BO 0 00 x 4 0 00 0 00 Y 4 0 00 Sa xX 0 00 BD BU ecoo RDE SYSTEMI OC 0 15 00 91 905 12 56 o2 o WE 215 um os 3E 0 12 m3 o2 LI son s06 o Ho P0 2 CANCEL 128 12 1 14 Vertical Coincidence Test at Far It performs an inspection using the vertical coincidence chart among the binocular tests According to the guide execute the ph
112. ssage 104 11 Examination Modes LDR 7800 system provides various examination modes in order to satisfy complicated optometry needs The examination modes may seem to be complicated at first But once get used to using them examination procedure can be optimized effectively and efficiently by memorizing different set of data such as RK and LM measurement in each mode and switching among memorized data with one touch of button for comparing those patient data There are six different modes available on LDR 7800 EMPTY mode This mode is the system default dummy mode where unclassified measurement may be memorized But the data memorized in this mode are not permanent Once the examination mode is switched to another the data will be copied to new mode and disappear completely You can configure the system to start from EMPTY mode whenever you reset by pressing the CLEAR button by setting the system option Startup Mode to EMPTY See the chapter 8 Configuring the System for more information UA mode This mode is provided to support checking and memorizing the unaided visual acuity of patient To enter this mode press the UA button LM mode This mode is provided to support loading and memorizing lensometry data If there is no lensometry data loaded pressing the LM button will make the system switched to LM mode and then automatically load the latest lensometry measurement transferred from LM auto lensmeter Otherwise
113. st with the dominant eye marked 161 RETINO 162 13 19 Polarized Red Green Test Objective To adjust the monocular and binocular balance at the same time during the subjective test Chart Polarized Red Green chart Auxiliary Lens 135 Polarizing Filter right 45 Polarizing Filter left Expectation The upper row for the right eye and the lower row for the left eye can be seen uniformly clear Also the letters on the red and green ground appear to be similar when they are seen from the upper row for the right eye and the same is true for from the lower row for the left eye Operation Sequence 805 508 BOB 805 Press the Polarized Red Green chart to enter this mode Alternately press the TEST button and then select Polarized Red Green Item of the touch screen to execute this test After pressing the R button If the left side red is seen more clearly turn the dial clockwise direction If the right side green is seen more clearly turn the dial counterclockwise direction Ask the patient on which ground the Letters in the upper row are seen more clearly red or green After Pressing the L button If the left side red is seen more clearly turn the dial clockwise direction If the right side green is seen more clearly turn the dial counter clockwise direction Ask the patient on which ground the letters in the lower row are seen more clearly red or green
114. stently In other words whenever the ESC button is pressed it goes to the main display without exception 2 PD Input button PD Press the PD button to enter PD control mode for both eyes or for Right Left eye and turn on the LED for VD check simultaneously To control R L PD press the R L button and change by the dial fi nn Ann 00 Pupil Distance P R ou L 32 00 64 00 32 00 ecoo RDE OC 0 15 OO o3 9Ca 12 A gs um o abo m PD 1 0 CANCEL 3 Unit Test button TEST 33 You can choose one from the 29 system providing unit tests or from the 35 user defined tests Pressing the CUSTOM button in the Chart area of LCD Screen it selects the user defined test list directly 4 Data Item Selection buttons S Spherical power C Cylindrical Power A Cylinder Axis ADD Additional Power VA Visual Acuity BIBO Horizontal Prism BDBU Vertical Prism TIP Pressing the ALT and C buttons at the same time convert sign to On the other hand pressing with the SHIFT button initializes the corresponding field to zero for the right left and both eyes especially for VA f these are pressed again in the PRISM either vertical or horizontal or ADD mode the reversed screen is changed to square shape and the corresponding lens rotary prism is removed or the ADD mode is temporarily resolved This function is of great use when you show your patient comparing the norm
115. stributed and equally clear Operation Sequence 1 Press Cross Grid for Distance chart to enter this mode Alternately press the 155 TEST button and then select Cross Grid for Dist Item of the touch screen to execute this test 2 Select the desired field by pressing R or L button 3 Change the SPH value until the horizontal and vertical rods are seen uniformly Clearly and thickly 4 Ifthe vertical rod is seen more clearly turn the dial clockwise direction 5 f the horizontal rod is seen more clearly turn the dial counterclockwise direction 00 00 0 A 0 00 sBicBo 0 00 sptsu 0 0 ecoo RDE SYSTEMI OC 0 15 OO o3 9C 12 Bakes mox wm o1 36012 WES 0 8 ae motes Set RETINO 156 ANTES You should correctly set astigmatism axis and cylindrical power before doing this test to prevent the influence of direct or indirect astigmatism 13 15 Dominant Eye Test for Phoria Objective To find the dominant eye for phoria since the patient with phoria has dominant eye in a slightly different way compared to a normal case Chart the Dominant Eye for Phoria chart with CCP 7000 only Auxiliary Lens Red Filter right Green Filter left Expectation To check to which direction follows the fixation point the red or green rod Operation Sequence 1 Enter this mode by pressing the Dominant Eye for Phoria chart Alternately press the TEST button and then
116. subjective test using the polarized Cross chart without the fixation Point chart Chart Cross without the Fixation Point chart Auxiliary Lens 135 Polarizing Filter right 45 Polarizing Filter left Expectation The upper right cross mark for the right eye and the lower left cross mark for the left eye are overlapped into one ideal cross Operation Sequence 177 To enter this mode press the Polarized Cross Chart twice or the SHIFT button and the Polarized Cross Chart at a time Alternately press the TEST button and then select Pola Cross Item of the touch screen to execute this test Ask the patient as follows Can you see one ideal cross mark If Yes the patient has no phoria and All done If No the patient has phoria and Continue the test At first ask the patient to measure the horizontal phoria as follows Is the Ly shape to the left of the 4 shape or to the right of it If Right esophoria Turn the dial clockwise to add the BO prism till they form a cross mark If Left exophoria Turn the dial counterclockwise to add the BI prism till they form a cross mark At secondhand ask the patient to measure the vertical phoria as follows Which shape is higher 4 shape or L shape If L shape left eye with hyperphoria Turn the dial clockwise to add the BU prism till they form a cross mark If 4 shape right eye with hyperphoria Turn the dial counterclockwise to add
117. tem and program execution methods by exploring the system defined program carefully from beginning to end See chapter 13 System providing Unit Tests for detailed procedures and notice 1 Starting the System Providing STANDARD Program Users should wait until finishing the LDR 7800 system initialization after power recycling For convenience s sake let s begin after changing into the SUBJ mode when entering into the main screen Press the START button to execute the system defined program If the START and SHIFT button are pressed all together program selection menu will be appears on the screen In this menu you may execute the same system defined program if you choose STANDARD and then press SET button or press OK button of the touch screen After the system defined program begins STANDARD the name of the progressing program and 1 17 the current step the number of the whole steps of the program will be displayed at the bottom of the right window to inform the current state TEST RESULT EM CONFIG EDIT PROGRAM EDIT TEST EDIT M GALLERY 1 2 EDIT PROGRAM 119 STANDARD CUSTOM A CUSTOM B CUSTOM C CUSTOM D CUSTOM E CUSTOM F CUSTOM G CANCEL 120 12 1 1 Adjustment of the SPH CYL AXIS Values for Right Eye The first step for the system defined program is to coordinate the SPH CYL AXIS values for the right eye Initial field value is adjusted to SPH for both eyes Push the R
118. ts the default cross cylinder lens type for the cross cylinder tests This assigns 0 25 0 50 or DUAL 0 25 and 0 50 is the Jackson Cross Cylinder lenses and the DUAL is the DUAL Cross Cylinder lens Default value is DUAL C C Auto Occlusion assigns YES or NO whether auto occlusion for patients will be executed when the Cross Cylinder lens is rotated more than 45 degree Default value is YES S E Fix specifies how the spherical equivalent fixation function will be applied Choose one among CC ONLY during cross cylinder test only CYL MODE during normal cylinder power adjustment mode only OFF turning off this option and ALWAYS both the CC ONLY and CYL MODE Default value is CC ONLY Retinoscopy assigns the default type of retinoscopic lense Select one among 1 5D 67 cm 2 0D 50 cm and OFF Default value is 1 5D 10A BI Complement assigns additional prism power up to 5A for the 10A BI split prism lens Default value is 2A The LCD display also shows the 10A BI complement prism on it when this option is applied and executed Link Atest w X Y A assigns YES or NO whether the prescription prism values are synchronized with the result of a prism test after its execution This is because it can records all the different prism test results separately without affecting the prescription prism power Default value is NO 68 2 6 LENS amp DATA MANIPULATION 2 1 2 3 TEST RESULT C Auto Occlusion YES SYSTEM CONFIG ED
119. tton of the touch screen when the charts come together All done 144 Far Negative Relative Convergence BI BLUR 0 00 BREAK 0 00 RECOVERY 0 00 Si X ecoo RDE OO 01 9Co um o BLUR BREAK RECOV 0 00 0 00 SYSTEMI o j PO 1 F p o D z CANCEL 145 13 8 Positive Relative Convergence Test Objective To measure the Positive Relative Convergence test during the subjective test Chart Near Distance chart Auxiliary Lens None Expectation To obtain BLUR BREAK and RECOVERY value Operation Sequence um m PRC 1 Press the F N button of the touch screen to select near or far mode 2 Press the BIBO button and then the PRC button of the touch screen Alternately press the TEST button and then select Positive Relative Convrg Item of the touch screen to execute this test 3 n the far mode horizontal Von Graefe Chart will be spread on the screen In the Near Mode lower the Von Graefe chart until it is placed to 40cm away position from the patient s eye so that the patient could see this chart 4 After pressing the BLUR button of the touch screen turn the dial clockwise to subtract BO prism Press the BREAK button of the touch screen by the time the chart starts to fade away If there is no such spot and the chart appears to be divided into two continue the test 5 Continuously turn the dial clockwise to subtract the BO prism Press the RECOV b
120. two frames are aligned If the upper one is left of the lower one exophoria Turn the dial counterclockwise to add the BI prism till the two rods are aligned If you are satisfied with the test result press the OK button of the touch screen to save each results of phoria test is maintained separately or the CANCEL button of the touch screen to discard the result Continue this test by asking the following question if necessary Can you see the frames with a point at the center Are the two frames of the same size or not One line equals to about 3 5 aniseikonia nm L If Yes the patient has no aniseikonia Press the OK button of the touch screen to select OK If No the patient has aniseikonia Press the NG button of the touch screen to select NG 174 Q o T FA E R L Bl oia BO A 0 00 Y 0 00 0 00 _Bi B0 wv X 0 00 BD BU FAR amp S C Hor Coincidens 0 00 xd 0 00 P ecoo RDE l OC 0 15 OO 31 9Ca12 26 o2 wm o1 3E 0 12 P0 2 CANCEL 13 25 Vertical Coincidence Test Objective To execute a vertical phoria test during the subjective test using the Coincidence chart Chart Vertical Coincidence chart Auxiliary Lens 135 Polarizing Filter right 45 Polarizing Filter left Expectation The right frame for the right eye and the left frame for the left eye make ideal square Operation Sequence nuo 175 To enter this mode press the Coincide
121. u try to make use of it several times you can find this job very easy 87 9 2 Editing User Designable Unit Test If the user defined program can be understood as it is the Unit Test edition is not so hard After pressing the MENU button and select Edit Test item of the touch screen to enter the Unit Test program editing function Now selecting the Unit Test program window will be appeared on the screen Each item presented here is displayed as the button in chart key area and it means the 1 step unit program that will be executed when the defined button is showed in the Main screen by press CUSTOM button of the touch screen Since the chart key area includes 5 7 35 keys total 35 unit programs can be defined Each unit test will be show a Unit Test name chart test mode and eye value Use arrow buttons and the dial to select one for example CUSTOM A1 or press the Unit Test name of the touch screen Then the EDIT TEST will be executed about each of the Unit Test Let s define a Unit Test for CUSTOM AT first for an example 1 4 EDIT TEST 1 TEST RESULT SYSTEM CONFIG CUSTOM 2 EDIT PROGRAM CUSTOM 3 EDIT TEST CUSTOM 4 EDIT MESSAG CUSTOM 5 GALLERY CUSTOM 6 CUSTOM 7 CANCEL 88 If CUSTOM A1 is selected the display similar to the user defined program editing described in chapter 9 1 will appear However the BACK NEXT ADD INS buttons are nowhere But it can be operate using the buttons of
122. ue when the SHIFT button is pressed with Choose one among 0 5D 1 00D 2 00D 3 00D and 4 00D Default value is 1 00D Try turning the dial while pressing the SHIFT button to make use of this option CYL Step SHIFT set the basic step for a CYL value when the SHIFT button is pressed with Choose one among 0 5D 1 00D 2 00D and 3 00D Default value is 1 00D Try turning the dial while pressing the SHIFT button to make use of this option AXS Step SHIFT sets the basic step for an AXIS value when the SHIFT button is pressed with Choose one among 1 5 and 15 Default value is 1 Try turning the dial while pressing the SHIFT button to make use of this option 66 A Step SHIFT sets the basic step for a prism value when the SHIFT button is pressed with Choose one among 0 5A 1 0A and 2 0A Default value is 1 0A Try turning the dial while pressing the SHIFT button to make use of this option TEST RESULT SYSTEM CONF IG EDIT PROGRAM EDIT TEST EDIT MESSAGE GALLERY 1 8 LENS amp DATA MANIPULATION 1 SPH Step CYL Sign AXS Step d Step SPH Step shift CYL Step shift AXS Step shift 4 Step shift CANCEL 8 2 2 e e e e 67 Page 2 LENS amp DATA MANIPULATION 2 S C Auto Occlusion assigns YES or NO whether auto occlusion for patient will be executed when the SPH and CYL lenses are changed by high diopter Default value is YES CC Type se
123. utton and can t press the Mode selection button Press again A button then change button and can use the Mode selection button 4 Buttons for the Unit Test Chart Execute unit test Execute another test assigned to the button if pressed with the SHIFT button For example Von Graefe Cross Hair Aniseikonia and Stereo Test Do the user designed test if pressed with the CUSTOM button 44 CUSTOM co ee 70 FAR To unlink VA charts i e only chart is displayed and other functions related with VA chart are disabled press VA chart with the SHIFT button Sets red green filter on a presented visual acuity chart Pressing the button again removes the red green filter set previously Removes chart mask if a presented visual acuity chart is masked but not red green filter ZAF TR 100 FHDPE 80 OZNAT 70 5 Buttons for Function Key Execute or select the function keys in the bottom area of the LCD display Are useful to modify increment unit for the SPH CYL AXIS value Execute required instructions on doing job such as program message editing or printing 6 Touch On Off Button f press the button of the touch screen appear C button and D can t press all buttons of the touch screen Press again button then CX n change button and can use all buttons of the touch screen This function is useful when explaining to customer with pointer at the screen 7 Buttons for Aux Lenses 45
124. utton of the touch screen by the time the chart is divided into two 6 Atthis time turn the dial counterclockwise to add the BO prism Press the OK button of the touch screen when the charts come together All done 146 FAR Positive Relative Convergence BO BLUR 0 00 BREAK 0 00 RECOVERY 0 00 av x om oie RDE 00 a1 9Co Wm o1 3E 0 12 996 cou ses s05 o 1 BLUR BREAK RECOV P0 1 CANCEL 13 9 Cylinder Axis Test Objective To obtain maximum corrected monocular CYL value during the subjective test using the Clock Dial chart by 30 steps Chart Clock Dial chart Auxiliary Lens None Expectation All the rods on the screen can be seen uniformly clear Operation Sequence 147 1 Press the Clock Dial chart to change into astigmatism Alternately press the TEST button and then select Cylinder Test Axis Item of the touch screen to execute this test 2 Pressthe R or L button to select the desired field 3 Press the S button to enter the spherical power mode and then apply fog till the numbers outside the Clock Dial appears to be clear 4 Ask the patient which direction is thicker or clearer than other directions 5 f the answer is All rods are seen uniformly clear the patient has no astigmatism Others after multiplying the numerical of the rod by 30 press the A button to set the astigmatism 0 00 sBi Bo 0 00 sptsu ecoo RDE SYSTEMI 00 a1 9Ca12 20 um o S
125. xiliary Lens 135 Polarizing Filter right 45 Polarizing Filter left Expectation The upper row for the right eye and the lower row for the left eye appear to be similarly clear Operation Sequence To enter this mode press the Polarized Binocular Balance Chart Alternately press the TEST button and then select Binocular Balance Item of the touch screen to execute this test Press the OU button to select all fields for both eyes and then apply for by about 0 5D when you can see the upper and lower charts all together Ask the patient Which row do you see more clearly except for the middle row the upper or the lower If the upper row is seen more clearly turn the dial counterclockwise while pressing R button to increase the right SPH value If the lower row is seen more clearly turn the dial counterclockwise while pressing L button to increase the left SPH value Repeat this procedure till the upper and lower rows are seen uniformly clearly oe RDE OC 0 15 OO o3 OCco Salas um o3 WE 9 15 FOG PF 90 VANS If the patient has the dominant eye and the difference is equal to or less than 0 22D maximum 0 5D The polarized Binocular Balance Test may be omitted because the patient has of course the better sight with the dominant eye When you are examining the patient with the dominant eye the balance point cannot be found with Polarized Binocular Balance Test In such case pass this te
126. y because initial mode is regarded as SUBJ So you can benefit from it 11 3 Warnings on Mode Warnings on mode are presented here 1 The modes are not compulsive In other words it is true that there is no harm loading and modifying the LM data into RK mode or the RK data into SUBJ mode You should remind that RK LM SUBJ modes are only optometry convention as a matter of convenience Optometry in initial mode makes no problem however it is only recommended when there is no need to use other external instruments such as LM or RK and to compare the FIN result It will be better to convent mode into SUBJ directly or after some basic optometry Once duplication had arisen during a mode change the other one would not occur when returning to the same mode from another Data duplication occurs only once to prevent unintended mistakes that miserably result in data loss In FIN mode LM RK and SUBJ windows will be shown on the left side with which you can check the former state LM RK current state SUBJ and the finally corrected state FIN By changing the SUBJ Startup option in the system option you can modify from which mode data will be duplicated when the SUBJ button is pressed Options are as in the following figure 111 4 B TEST amp DATA MANIPULATION 2 TEST RESULT Default Program STANDARD SYSTEM CONFIG Input Fusion YES Input Stereo YES EDIT PROGRAM Input Coincidence YES EDIT TEST
127. you press ALT OPEN CLOSE left or ALT OPEN CLOSE right buttons then the state signal AUX OFF will be shown on the left top of the screen To escape from the AUX OFF mode press ALT OPEN CLOSEJ left or ALT OPEN CLOSE right buttons again SUBJ FAR 0 25 0 50 95 0 00 0 00 0 00 11 5 3 ADD OFF Mode ADD OFF mode temporarily removes addition power from the lens unit Digital Refractor If you press ADD button twice it enters the ADD OFF mode Pressing the ADD button again restores the system to the previous mode 117 04 24 02 56 PM FAR SUBJ FAR 0 25 0 50 95 0 00 0 00 0 00 11 5 4 PRISM OFF Mode PRISM OFF mode temporarily removes prism power from the lens unit Digital Refractor If you press BIBO or BDBU button twice it enters the PRISM OFF mode Pressing the BIBO or BDBU button again restores the system to the previous mode 04 24 03 05 PM FAR SUBJ FAR 0 00 S 0 25 0 25 0 50 C 0 50 E cu 0 A 95 E e 0 00 sBicBo 0 00 pe 0 00 s sv 0 00 118 12 12 Standard Program amp Functions LDR 7800 system provides one system defined basic program Standard and 10 user designable programs to make optometry process more convenient and fast By the system defined program operators can enjoy the various inspections provided with LDR 7800 system Accordingly this chapter explains the basic recipes for how to use LDR 7800 sys
128. ystem and is therefore responsible for the system to comply with the requirements of IEC60601 1 1 If in doubt contact qualified technician or your local representative Or some cases for example LCD Monitor This device is intended to connect to the medical device only which complies with standards of IEC 60601 series 17 23 Do not touch signal input signal output and patient simultaneously example Ref Body and OP connectors of DIGITAL REFRACTOR LDR 7800 RS 232C of DIGITAL REFRACTOR LDR 7800 OP and connectors of Converter Box VANS Digital Refractor is heavy so please fix it on the unit table not to be moved Otherwise heavy equipment crash to fall examinee As a result examinee may be hurt PANTIES To perform automatic POST Power on Self Test Digital Refractor moves left and right side To avoid injury of examinee please keep examinee from Digital Refractor at least 20cm or more during POST initialization VAN Do not place your hand or finger between the left and the right side of Digital Refractor Also ensure that the examinee does not place his her hand or fingers there either Otherwise hand or fingers may be hurt VAN Digital Refractor LDR 7800 JB does NOT support rack installation nor wall mount installation Any other device for Digital Refractor LDR 7800 JB installation should be compliant with relevant IEC standard PANTIES Do NOT use 200 240 Vac power in

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