EZER EDR 7800 Operation Manual
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EZER EDR 7800 Operation Manual

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  • Page 3 The EDR 7800 is classified as IPX0 [Degree of protection against flammability] The EDR 7800 is classified as a device not suitable to be used in a potentially flammable environment. Do not use near flammable materials [Method(s) of sterilization or disinfection recommended by the manufacturer]...
  • Page 4 SAFETY INFORMATION SAFETY INFORMATION SAFETY INFORMATION SAFETY INFORMATION Accessory equipment connected to the analog and digital interfaces must be certificated according to the respective IEC/EN standards (e.g. IEC/EN 60950 for data processing equipment and IEC/EN 60601-1 for medical equipments). Furthermore all configurations shall comply with the system standard EN 60601-1-2:2007. Everybody who connects additional equipment to the signal input part or signal output part configures a medical system, and is therefore responsible that the system complies with the requirements of the system standard EN 60601-1-1:2001.
  • Page 5 SYMBOLS Symbol Descriptions TYPE B EQUIPMENT Protective earth (ground) Alternating current Off (power: disconnect to the mains) On (power: connection to the mains) Do not throw away the waste to inappropriate place Risk of electric shock Crushing hazard sign Hand hazard sign Instruction for user manual General mandatory action sign General prohibition sign...
  • Page 6 Do not build up more than 2 boxes Manufacture Europe Representative Manufacture Date Only one unit in the box Temperature between - 40˚C ~ 70˚C Humidity between 10%RH ~ 95%RH Air pressure between 500hPa ~ 1060hPa Shape of f f f P P P P lug Shape o Shape o Shape o...
  • Page 7 General Safety Information General Safety Information General Safety Information General Safety Information Saftey is the obligation responsibility of human. Safe use of this device is related with everyone ; installer, user, operator and device manager. It’s enforced to read and understand this manual before installing, using, cleaning and repairing this unit and accessories.

  • Page 8: Table Of Contents

    ................... 14 ..4.1 Body of EDR 7800 (Ref.Body) ................... 14 4.2 Operation Panel ....................... 15 4.3 Junction Box ......................17 4.4 Accessaries ......................18 4.4.1 R e f . B o d y ..................................1 8 4.4.2...
  • Page 9 8.3 EDIT PROGRAM and EDIT TEST ................. 48 8.3.1 E d i t C u s t o m p r o g r a m ............................. 4 8 8.3.2 E d i t C u s t o m T e s t .
  • Page 10 10.6 Positive Relative Accommodation ................78 10.7 Negative Relative Convergence ................79 10.8 Positive Relative Convergence ................. 80 10.9 Cylinder Power Test ....................81 10.10 Cylinder Axis Test ....................82 10.11 (Monocular) Red/ Green Test .................. 83 10.12 Jackson Cross Cylinder Test .................. 84 10.13 Dual Cross Cylinder Test ..................
  • Page 11 12. Test Result Display and Print out 12. Test Result Display and Print out 12. Test Result Display and Print out 12. Test Result Display and Print out ....................................................................106 12.1 View the Result Screen..................106 12.2 Print on Papers ....................
  • Page 12 1. 1. 1. 1. Characteristics All the machines such as ECP-5400, ERK-7800, and PCs could be connected with and used by one cable, using RS-485 network method. By maximizing compatibility among products, you can deal with the information about Visual Acuity Test eaily.

  • Page 13: 2. 2. 2. 2. Notice For Use

    2. 2. 2. 2. Notice for Use 1. To avoid a danger by electric shock, this device must be connected to the power supply with a protection ground.(Class I) 2. It’s recommended to install this onto unit table with a proper ground to reduce a shock.
  • Page 14 1. Don’t clean the surface with organic solvent such as alcohol, thinner and benzene so that it may damage 2. Do not keep or install at the place which there is risk of explosion or at the place which there are flammable substances such as alcohol, thinner and other chemicals 3.

  • Page 15: 3. 3. 3. 3. Prerequisite For Safety

    3. 3. 3. 3. Prerequisite for safety It’s compulsory to use the device according to manua for safetyl. Please read and understand the instructions of the manual fully before powering on For more information regarding the unit please contact your dealer. 3.

  • Page 16: 4. 4. 4. 4. Designations And Functions Of Each Parts

    B o d y o f E D R 7 8 0 0 ( R e f . B o d y ) EDR 7800 body is the most important part of the Digital Refractor, and is installed in the unit table.

  • Page 17: Operation Panel

    Nomination Function ① Leveler I n f o r m i f E D R 7 8 0 0 m a y m a i n t a i n l e v e l ② Forehead Fixing Dial Fasten your forehead to forehead rest, You can adjust VD with dial.

  • Page 18: Junction Box

    RS- - - - 232 PORT 232 PORT ⑤ ⑤ ⑤ ⑤ 232 PORT 232 PORT USB PORT USB PORT ⑥ ⑥ ⑥ ⑥ USB PORT USB PORT [Figure 4-4] Operation Panel (Left-side) JUNCTION BOX JUNCTION BOX ⑦ ⑦ ⑦ ⑦ JUNCTION BOX JUNCTION BOX PORT...
  • Page 19 J u n c t i o n B o x Junction Box connects the Ref. Body with the Operation Panel, communicates with panels, and supplies each device with power. Ref. Body ① ① ① ① Connecting Terminal Converter Connecting ③...

  • Page 20: Accessaries

    A c c e s s a r i e s Those are various accessories offered by EDR 7800. 4.4.1 4.4.1 4.4.1 4.4.1 R e f . B o d y ① ② ③ ③ ④ ⑤ ⑥ ⑦ [Figure 4-7] Ref. Body Accessaries...

  • Page 21: O P E R A T I O N P A N E

    Nomination Function Q’ty Forehead Prop A prop to fix the patient’s forehead. ① ② Face Protecter (2EA) Softly touched for a human face. Can be attached and detttached. A Bar for Near Vision ③ A bar to fix Near Vision Chart. Chart Near Vision Chart Chart for Near Vision test.
  • Page 22 Nomination Function Q’ty Power Cable A terminal to connect with the outer power. ① ② Fuse (T2AH, 250V) A device to protect this equipment form excessive currents. [Table 4-6] Junction Box 4.4.4 4.4.4 4.4.4 4.4.4 C o n v e r t e r B o x ①...
  • Page 23 Operation Panel. And then, the initializing screen appears on time. 11) Start vision test after initialization of the Ref. Body and the Operation Panel. 12) Please refer to the chapter 7~9 for various options for the test and its applications. [Figure 4-11] EDR 7800 Connection Diagram...

  • Page 24: J U N C T I O N B O

    It may cause a damage of instrument if used under the condition of a Leakage current or Voltage. - Check the condition of connection for the cable when use in case of utilizing A/C of EDR 7800 separately.

  • Page 25: 5. 5. 5. 5. Basic Operation

    5. 5. 5. 5. Basic operation EDR 7800 is designed to operate the necessary functions by means of Dials on Operation panel, Key pad button and the buttons on touch screen. it’s minimized the button which is overlapped between Keypad and Buttons on touch screen so that it could supply users with circumstances to operate the device easily.
  • Page 26 Control the Nead LED brightness of Ref.Body. Rotate dial or Press any button on OP PANEL to escape. [SHIFT] Button Extend the function of the button As explained before, It could be initialized on the same plan as booting if press [SHIFT] and [RESET] together and OP PANEL is under compulsory sleep mode when you press [SHIFT] button and [LAMP] button together.

  • Page 27: How To Control Touch Screen Monitor

    H o w t o c o n t r o l t o u c h s c r e e n m o n i t o r Here is the explanation of features and functions for touch button on touch screen monitor ②...
  • Page 28 Button to input PD value ⑤ - It shows a window to amend single PD value on the top of left side on screen when press the button and at the same time LED to check VD would be on - Press the applicable button to adjust single PD(R/L) value and rotate jog dial to adjust [Figure 5-4] MENU selection screen and window to input PD Chart selection Button, Test Button and SYSTEM Button...
  • Page 29 [Figure 5-5] Auxiliary lens for right eye, Left eye and Binocular eye [ EDR 7800 List of Auxiliary lens ] Lens Application Description Lens Application Description Window Open Window Close Polarized light 45 Polarized light degrees 135 degrees ∆ ∆...
  • Page 30 [Figure 5-6] Choosing Option of 10 ∆ B I Prism Lens and Installation ⑧ F U N C K E Y b u t t o n - It is used to execute the function of FUNKEY or to select increase and decrease unit when change field value - Different meaning and function are designated on a button per each mode and it’d be used helpfully on each test process.

  • Page 31: 6. 6. 6. 6. Test Mode

    6. 6. 6. 6. Test Mode EDR-7800 offers 6 kinds of test modes to directly compare objective test result with the subjective test result. You can designate the test mode you want, according to the startup mode of ‘SYSTEM CONFIG - page 4.’...

  • Page 32: Why Does Need Test Mode

    Separated with the test modes, ‘PRESET Mode‘ and ‘OFFSET Mode’ are offered, in relation to putting in lenses. PRESET Mode: When the mode is setup, the lenses put into the EDR-7800 Ref. If the mode is on, the inserted lens are not changed, although the field value is changed. When the mode is off, it prevents not to intervene any accommodation force to patients according to changing lens, by putting in all the lenses at once.

  • Page 33: Use Of Preset And Aux Off Mode

    U s e o f P R E S E T a n d A U X O F F M o d e PRESET Mode On PRESET Mode, the lenses are not changed while values of field(S, C, A, VA, ADD, PRISM) are changed.

  • Page 34: Test Of Far Vision And Near Vision

    [ADD] mode by pressing [ADD] button. On each method, the Ref. Body of EDR 7800 is tilted to the opposite side of the patient, and input the information about the work distance and the patient’s age for an accurate test when you do Near vision test.
  • Page 35 Set up the working distance You can adjust the tilting degree while continuously checking it by pressing [WD] button on range of Function key below of screen Set up patient’s eye Can alter age by pressing [AGE] button and furthermore, Add per age is automatically applied if ADD ESTIMATION on SYSTEM CONFIG –...

  • Page 36: 7. 7. 7. 7. Communication With Various Vision Test Devices

    O p t i o n s e t t i n g f o r C h a r t P r o j e c t o r ( E C P - 5 4 0 0 ) To use EDR 7800 proper, Chart Projector (ECP-5400) must be installed. In case Chart Projector is installed, just follow as below to choose the options SYSTEM CONFIG –...
  • Page 37 Save the test results of the Auto Ref / Keratometer (ERK-7800) or the measurement data of EDR-7800 into the database of EDR-7800 Transmit the test results of the Auto Ref / Keratometer to EDR 7800. The data that is ①...

  • Page 38: Make Use Of Built- In Database

    M a k e U s e o f B u i l t - I n D a t a b a s e EDR 7800 can save the past results of 120 patients at most (or Maximum 40 results for each data).

  • Page 39: 8. 8. 8. 8. Choose Menu

    8. 8. 8. 8. Choose Menu EDR 7800 serves a various function through ‘MENU’ choice mode. Enter Menu mode by pressing [MENU] button on operation panel or by touching [MENU] on the screen. Use Dial to choose the required menu on the ‘MENU’ choice mode, and execute the chosen menu by pressing the dial button or by touching the chosen list on the screen.
  • Page 40 LIST1 : SPH, CYL, AXIS, ADD, VA test result [Figure 8-2] LIST1 LIST2 : ADD VA, X △ △ , NPC, NPA, Fusion, Minute Stereo, Aniseikonia test result [Figure 8-3] LIST2 LIST3 : BLUR, BREAK, RECOVERY, NPC, NPA, Fusion, Minute Stereo, Aniseikonia test result [Figure 8-4] LIST3...
  • Page 41 PRISM : SCHOBER, VON GRAFE, COINCIDENCE, PHORIA, PHORIA WITH FIXATION, MADDOX, NRC, PRC [Figure 8-5] PRISM Can print out the test result by pressing [PRINT] button or [OK] button on the screen. Can enter ‘TEST RUSULT’ without printing if ‘PREVIEW LIST’ on ‘PRINT OPTION’ - 6page of [SYS TEM CONFIG] is set as ‘YES’...

  • Page 42: System Config

    S Y S T E M C O N F I G EDR 7800 can realize the optimal test envirionment through menus of the ‘SYSTEM CONFIG’. To enter, you can press ‘MENU’ button on operation panel or press [MENU] button on the screen...

  • Page 43: I N T R O D U C I N G E A C H P A G

    8.2.2 8.2.2 8.2.2 8.2.2 I n t r o d u c i n g e a c h p a g e PAGE 1(LENS & DATA MANIPULATION(1)) Set up the information related with lens conrol which is necessary in the process of test. [Figure 8-8] LENS &...
  • Page 44 PAGE 2(LENS & DATA MANIPULATION(2)) Set up the information related with lens conrol which is necessary in the process of test. [Figure 8-9] LENS & DATA MAINPULATION (2) AUTO OCCLUSION: S/C: Determine whether to occlude the lenses automatically ① for the patient, in case SPH and CYL lens are changed drastically. You can choose YES or NO, and the initial value is YES.
  • Page 45 PAGE 3(TEST & DATA MANIPULATION(1)) Set up the items related with the test and data control which is necessary in the process of test. [Figure 8-10] TEST & DATA MANIPULATION(1) Display: Designate marking method of . You can choose X/Y or r/θ, but the ①...
  • Page 46 PAGE 4(TEST & DATA MANIPULATION(2)) Set up the items related with the test and data control which is necessary in the process of test. [Figure 8-11] TEST & DATA MANIPULATION(2) DEFAULT PROGRAM: Designate basic programs for vision test. Can choose one ①...
  • Page 47 PAGE 5(TEST ENVIRONMENT) Set up the options about Test Envirionment. [Figure 8-12] TEST ENVIRONMENT BEEP SOUND: Determine whether to use the button sound and sound effects. ① You can choose ON or OFF, but the initial value is ON. ② LANGUAGE: Choose the language.
  • Page 48 PAGE 6(PRINT OPTION) Set up the options related with printing. [Figure 8-13] PRINT OPTION ① PRINT SUBJECTIVE: Designate the items of subjective test result to be printed. You can choose one among ALL (print all the date) W/O UNAIDED VA (print except the unaided Visual Acuity Test result), W/O BIN VF (print except the vision functions test result), SUBJ &...
  • Page 49 PAGE 7(EXTERNAL INSTRUMENT) Set up the items related with external instrument. [Figure 8-14] EXTERNAL INSTRUMENT ① LINKAGE MODE: It means the manner to receive the test results of other device and there are ALONE & [NETWORK]. The initial value is ALONE - ALONE : While the test results is saved in the RK Database, it shows on screen at the same time.

  • Page 50: Edit Program And Edit Test

    E D I T P R O G R A M a n d E D I T T E S T [Figure 8-15] EDIT PROGRAM and EDIT TEST EDR 7800 supports programs (1 System Program and 11 Custom Programs) and Unit Test functions (30 System Test and 36 Custom Programs) to establish a measurement circumstances to meet the...
  • Page 51 [Figure 8-16] List of program selcection The number shown on the right upper side on the program edit screen does mean the number of current step and the quantity of all steps. One program can include totally 32 steps. On the upper side of the screen, the name and value of each components appears and on the below, there are chart buttons.
  • Page 52 TEST: It’s a name of unit test. CHART, DATA, EYE, CC TYPE, FOGGING and R/L Lens are all changed if select one. It’s activated when you press chart button or rotate dial. T. MODE : Select TEST MODE, Far distance mode and Near distance mode. Select distance mode and Near distance mode by pressing the combo box on the screen DATA : Select DATA ELEMENT.
  • Page 53 S e l e c t F A R m o d e . [Figure 8-18] STEP – 01 Polarlized Binocular Balance Test ② [STEP - 02] Schober Test A d d n e w s t e p b y p r e s s i n g [ I N S ] b u t t o n . A f t e r c h o o s i n g , s e l e c t c h a r t b y r o t a t i n g j o g d i a l o r s e l e c t c h a r t o n t h e s c r e e n d i r e c t l y .
  • Page 54 ③ [STEP - 03] Confirm Binocular visual acuity A f t e r c h o o s i n g , c h a n g e c h a r t b y r o t a t i n g j o g d i a l o r s e l e c t a c h a r t a m o n g n o r m a l c h a r t s d i r e c t l y b y t o u c h i n g .

  • Page 55: E D I T C U S T O M T E S

    8.3.2 8.3.2 8.3.2 8.3.2 E d i t C u s t o m T e s t Edit of Custom Test function shares very similar process with a edit of Custom Programs. Enter Custom Test selection mode by pressing [MENU], [EDIT TEST] and in order.
  • Page 56 [Figure 8-22] Edit Custom Test T o d o E d i t C u s t o m T e s t , p r e s s t o a l t e r i n t o C u s t o m c h a r t l i s t a n d s e l e c t a n e c e s s a r y c h a r t a m o n g t h e r e g i s t e r e d i t e m s [Figure 8-23] Chart List for Custom Test I t s h o w s “...

  • Page 57: Edit Message

    E D I T M E S S A G E Can edit the name of Custom Program, the name of Custom Test, Guide message and company name with a imaginary keyboard. [Figure 8-24] EDIT MESSAGE Select message group on running EDIT MESSAGE. If touch the test name on the screen, move to the message group.
  • Page 58 [ Characteristic of each MESSAGE group ] PROGRAM NAME : Only 1line (19 letters per a line) is editable, and STANDARD is not available to edit. TEST NAME : Only 1line (19 letters per a line) is editable. GUIDE MSG. : 3lines (20 letters per a line) are editable, and it is convertible between SYSTEM GUIDE MSG.

  • Page 59: E D I T T H E N A M E O F C U S T O M P R O G R A

    8.4.1 8.4.1 8.4.1 8.4.1 E d i t t h e n a m e o f C u s t o m p r o g r a m I t c o u l d p r o t e c t a n y c o n f u s i o n i n t h e p r o c e s s o f o p t o m e t r y i f c h a n g e t h e n a m e o f C u s t o m P r o g r a m a f t e r d e s i g n a t i n g C u s t o m p r o g r a m f o r p a t i e n t s .

  • Page 60: E D I T C U S T O M G U I D E M E S S A G

    8.4.3 8.4.3 8.4.3 8.4.3 E d i t C u s t o m G u i d e M e s s a g e E n t e r e d i t m o d e t h r o u g h i m a g i n a r y k e y b o a r d w i n d o w i f p r e s s [ E D I T ] o n f u n c t i o n k e y a r e a a f t e r s e l e c t i n g a b l a n k a r e a b y p r e s s i n g [ T E S T G U I D E ] t a b b u t t o n .

  • Page 61: Gallery

    G A L L E R Y E D R 7 8 0 0 s e r v e s a c o l o r - b l i n d n e s s t e s t a n d v i s u a l f u n c t i o n t e s t w i t h O p e r a t i o n p a n e l , f u r t h e r m o r e s e r v e s n e a r v i s i o n t e s t w i t h n e a r v i s i o n c h a r t .

  • Page 62: About

    A B O U T E D R 7 8 0 0 s e r v e s P a t i e n t I D , S / W v e r s i o n , C h a r t P r o j e c t o r d e v i c e t y p e , L a n g u a g e a n d t h e i n f o r m a t i o n o f t h e c o m p a n y w i t h ‘...

  • Page 63: 9. 9. 9. 9. Basic Programs Operation

    S t a r t S y s t e m - D e f i n e d B a s i c P r o g r a m Power on the junction box of EDR 7800 and wait until the system initialization is over. For a convenient test, let’s start after changing it into [SUB] mode on main screen.
  • Page 64 [Figure 9-2] Adjustment of 1 step S - C -A Value...

  • Page 65: C R O S S C Y L I N D E R T E S T U S I N G D O T S C H A R T ( A X I

    9.1.2 9.1.2 9.1.2 9.1.2 C r o s s C y l i n d e r T e s t u s i n g D o t s C h a r t ( A X I S ) The 2 step of the System-Defined Program is to revise the value of AXIS for the right eye more elaborately, based on the result of 1st step SPH-CYL-AXIS test.

  • Page 66: R E D / G R E E N B A L A N C E T E S T F O R S I N G L E E Y

    9.1.4 9.1.4 9.1.4 9.1.4 R e d / G r e e n B a l a n c e T e s t f o r s i n g l e e y e The 4 step of the System-Defined Program is to revise the value of SPH for the right eye more elaborately, based on the result of 1st step SPH-CYL-AXIS test.

  • Page 67: A D J U S T M E N T O F T H E S P H - C Y L - A X I S V A L U

    9.1.6 9.1.6 9.1.6 9.1.6 A d j u s t m e n t o f t h e S P H - C Y L - A X I S V a l u e step of the System-Defined Program is basically to adjust the value of SPH-CYL-AXIS for left eye.

  • Page 68: C R O S S C Y L I N D E R T E S T U S I N G D O T S C H A R T ( A X I

    9.1.7 9.1.7 9.1.7 9.1.7 C r o s s C y l i n d e r T e s t u s i n g D o t s C h a r t ( A X I S ) step of the System-Defined Program is to revise the value of AXIS for the left eye more elaborately, based on the result of 6th step SPH-CYL-AXIS test.

  • Page 69: R E D / G R E E N B A L N A C E T E S T F O R S I N G L E E Y

    9.1.9 9.1.9 9.1.9 9.1.9 R e d / G r e e n B a l n a c e T e s t f o r s i n g l e e y e step of the System-Defined Program is to revise the value of SPH for the left eye more elaborately, based on the result of 6th step SPH-CYL-AXIS test.

  • Page 70: B I N O C U L A R B A L A N C E T E S T A T P O L A R I Z E D L I G H

    9.1.11 9.1.11 9.1.11 9.1.11 B i n o c u l a r B a l a n c e T e s t a t P o l a r i z e d L i g h t In the middle of binocular vision test, check the binocular balance for corrected monocular value, using Polarized Light Filter (left side with 45 degrees and right with 135 degrees) For more detailed information, please refer to the article 10.17 Binocular Balance Test at Polarized...

  • Page 71: F A R D I S T A N C E V E R T I A C L C O I N C I D E N C E ( A N I S E I K O N I A ) T E S

    9.1.13 9.1.13 9.1.13 9.1.13 F a r D i s t a n c e V e r t i a c l C o i n c i d e n c e ( A n i s e i k o n i a ) T e s t Process a test using Vertiacl Unequal Coincidence(Aniseikonia) chart in the middle of binocular visual acuity test.

  • Page 72: N E A R D I S T N A C E C R O S S G R I D T E S

    9.1.14 9.1.14 9.1.14 9.1.14 N e a r D i s t n a c e C r o s s G r i d T e s t Check the accommodation force on Near Distance Mode by Cross Grid. Add or deduct value of ADD following the guidance.
  • Page 73 9.1.16 9.1.16 9.1.16 9.1.16 N e a r D i s t a n c e H o r i z o n t a l / V e r t i c a l V o n G r a e f e T e s t Test using Horizontal / Vertical Von Graefe Chart at Near distance.
  • Page 74 10. Unit Test EDR 7800 supports 30 system unit tests in total. The list of system unit tests is available by pressing [TEST] and Direction Key button on its touchscreen display in order, and can be run the system unit test function by pressing [OK] button.
  • Page 75 10.1 10.1 10.1 10.1 N e a r V i s i o n T e s t w i t h A d d i t i o n ( N e a r V A w i t h A D D ) Purpose: Test the Near Vision with Addition.

  • Page 76: Near Point Of Convergence Test)

    10.2 10.2 10.2 10.2 N e a r p o i n t o f c o n v e r g e n c e t e s t ) Purpose: Measure the mimimum point on which convergence is available. Chart: Near Point Chart Auxiliary Lens: None Target: Calculate the value of BREAK and RECOVERY.

  • Page 77: Near Point Of Accommodation Test

    10.3 10.3 10.3 10.3 N e a r P o i n t o f A c c o m m o d a t i o n T e s t Purpose: Subjective test, measure the accommodatable near point. Chart: Near Point Chart Auxiliary Lens: None Target: Estimate the accommodatable near point for left, right, and both eyes.

  • Page 78: Near Addition Test Using Cross Grid

    10.4 10.4 10.4 10.4 N e a r A d d i t i o n T e s t u s i n g C r o s s G r i d Purpose: Correct Near Addition according to Accommodation, using Cross Grid. Chart: Near Vison Chart (Cross Grid) Auxiliary Lens: Fixed Cross Cylinder Lens Target: Make the clarity and thickness of horizontal/vertical lines equally, similar with Far Vision...

  • Page 79: Negative Relative Accommodation Test

    10.5 10.5 10.5 10.5 N e g a t i v e R e l a t i v e A c c o m m o d a t i o n t e s t Purpose: In subjective test, estimate the negative relative accommodation. Chart: Near Vision Chart Auxiliary Lens: None Target: Calculate the value of BREAK and RECOVERY for left, right and both eyes.

  • Page 80: Positive Relative Accommodation

    10.6 10.6 10.6 10.6 P o s i t i v e R e l a t i v e A c c o m m o d a t i o n Purpose: In subjective test, estimate Positive relative accommoation. Chart: Near Vision Chart Auxiliary Lens: None Target: Calculate the value of BREAK and RECOVERY for left, right and both eyes.

  • Page 81: Negative Relative Convergence

    10.7 10.7 10.7 10.7 N e g a t i v e R e l a t i v e C o n v e r g e n c e Purpose: In subjective test, process Negative Relative Convergence test. Chart: Near Vision Chart Auxiliary Lens: None Target: Calculate the value of BLUR, BREAK, and RECOVERY.

  • Page 82: Positive Relative Convergence

    10.8 10.8 10.8 10.8 P o s i t i v e R e l a t i v e C o n v e r g e n c e Purpose: In subjective test, process Positive Relative Convergence test. Chart: Near Vision Chart Auxiliary Lens: None Target: Calculate the value of BLUR, BREAK, and RECOVERY.

  • Page 83: Cylinder Power Test

    10.9 10.9 10.9 10.9 C y l i n d e r P o w e r T e s t Purpose: Obtain maximum revised circumference degrees for monocular, using Clock Dial, Subjective test. Chart: Clock Dial Auxiliary Lens: None Target: All the lines must be seen as eaully.

  • Page 84: Cylinder Axis Test

    10.10 10.10 10.10 10.10 C y l i n d e r A x i s T e s t Purpose: Obtain maximum revised circumference degrees by 30 degrees’ unit for Monocular, using Clock Dial, Subjective test. Chart: Clock Dial Auxiliary Lens: None Target: All the lines must be seen as eaully.

  • Page 85: Monocular) Red/ Green Test

    10.11 10.11 10.11 10.11 ( M o n o c u l a r ) R e d / G r e e n T e s t Purpose: Check the maximum revised Spherical Refractive Power for Monocular by Red/Green Test Chart, using the principle of chromatic aberration, Subjective test.

  • Page 86: Jackson Cross Cylinder Test

    10.12 10.12 10.12 10.12 J a c k s o n C r o s s C y l i n d e r T e s t Purpose: Subjective test, revise maximum circumference refractive power and axis for Monocular, using Jackson Cross Cylinder Chart: Dot-Group Chart Auxiliary Lens: Cross Cylinder Lens (0.25 / 0.50) Target: The Dot-Group Chart must be seen as same, although the Cross Cylinder is crossed.

  • Page 87: Dual Cross Cylinder Test

    10.13 10.13 10.13 10.13 D u a l C r o s s C y l i n d e r T e s t Purpose: In subjective test, revise maximum circumference refractive power and axis for Monocular, using Dual Cross Cylinder Chart: Dot-Group Chart Auxiliary Lens: Dual Cross Cylinder Lens (DUAL) Target: Separted two Dot-Group Chart must be seen samely.

  • Page 88: Cross Grid Test

    10.14 10.14 10.14 10.14 C r o s s G r i d T e s t Purpose: Check the maximum revised Spherical Refractive Power, using Far Vision Cross Grid chart. Chart: Cross Grid Chart Auxiliary Lens: Fixed Cross Cylinder Lens Target: Make the clarity and thickness of of horizontal/vertical lines equally.

  • Page 89: Horizontal Maddox Rod Test

    10.15 10.15 10.15 10.15 H o r i z o n t a l M a d d o x R o d T e s t Purpose: In subjective test, do Horizontal Heterophoria in the way of Maddox Rod. Chart: Maddox Chart Auxiliary Lens: Horizontal Maddox for right eye, Rotating Prism for left eye.

  • Page 90: Vertical Maddox Rod Test

    10.16 10.16 10.16 10.16 V e r t i c a l M a d d o x R o d T e s t Purpose: In subjective test, do the Vertical Heterophoria in the way of Maddox Rod. Chart: Maddox Chart Auxiliary Lens: Rotating Prism for right eye, Vertical Maddox for left eye.

  • Page 91: Binocular Balance Test At Polarized Light

    10.17 10.17 10.17 10.17 B i n o c u l a r B a l a n c e T e s t a t P o l a r i z e d L i g h t Purpose: In subjective test, keep the binocular balance against maximum revised value of Monocular Chart: Binocular Balance Chart at Polarized Light...

  • Page 92: Worth For Dots Test (Worth 4 Dots)

    10.18 10.18 10.18 10.18 W o r t h F o r D o t s T e s t ( W o r t h 4 d o t s ) Purpose: Find out repression Subjective test. You can check out whether there is any internal/external Heterophoria.
  • Page 93 Chart Shape Meaning Description 2 green dots on left and right side, a red dot upside, and the downside dot are seen Fusion alternatively, or as white, or seen as 4 dots in light red, these cases are normal. Right Eye Seen 3 green dots only, it is Right Eye Suppression Suppression.

  • Page 94: Schober Test

    10.19 10.19 10.19 10.19 S c h o b e r T e s t Purpose: In subjective test, process Heterophoria in a way of Schober. Chart: Schober Chart Auxiliary Lens: Red Filter for right eye, Green Filter for left eye, and Rotating Prism for both eyes.
  • Page 95 [Figure 10-19] Schober Test Chart Shape Heterophoria Type Correction of Heterophoria Turn the dial clockwise (- direction) to Esophoria increase the value of BO prism, until the cross locates in the middle of the circle. Turn the dial counterclockwise (+ Exophoria direction) to increase the value of BI prism, until the cross locates in the...
  • Page 96 10.20 10.20 10.20 10.20 V e r t i c a l C o i n c i d e n c e ( A n i s e i k o n i a ) T e s t Purpose: In subjective test, process Aniseikonia and Vertical Heterophoria by Coincidence (Aniseikonia) Chart.

  • Page 97: Phoria Test Without Fixation

    10.21 10.21 10.21 10.21 P h o r i a T e s t w i t h o u t F i x a t i o n Purpose: In subjective test, progress Heterophoria test in a way of Pola Cross without Fixation.
  • Page 98 Chart Shape Heterophoria Type Description 1) Turn the dial clockwise until the Esophoria Vertical Chart of the Cross becomes a cross shape, to increase BO prism. 2) Turn the dial clockwise until the Exophoria Vertical Chart of the Cross becomes a cross shape, to increase BI prism.

  • Page 99: Phoria Test With Fixation

    10.22 10.22 10.22 10.22 P h o r i a T e s t w i t h F i x a t i o n Purpose: Subjective test, progress Heterophoria in a way of Pola Cross with Fixation. Chart: Polarized Cross Chart with Fixation Auxiliary Lens: Polarized Filter with 135 degrees for right eye, and 45 degrees for left eye.
  • Page 100 Chart Shape Heterophoria Type Description 1) Turn the dial clockwise until the Esophoria Vertical Chart of the Cross becomes a cross shape, to increase BO prism. 2) Turn the dial clockwise until the Exophoria Vertical Chart of the Cross becomes a cross shape, to increase BI prism.

  • Page 101: Horizontal Von Graefe Test

    10.23 10.23 10.23 10.23 H o r i z o n t a l V o n G r a e f e T e s t Purpose: In subjective test, process Heterophoria in a way of Von Graefe. Chart: Numbers Chart Auxiliary Lens: 6 △...

  • Page 102: Vertical Von Graefe Test

    10.24 10.24 10.24 10.24 V e r t i c a l V o n G r a e f e T e s t Purpose: Subjective test, process Heterophoria in a way of Von Graefe. Chart: Numbers Chart Auxiliary Lens: Rotating Prism for right eye, and 10 △...

  • Page 103: Minute Stereo Acuity Test

    10.25 10.25 10.25 10.25 M i n u t e S t e r e o A c u i t y T e s t Purpose: Subjective test, progress a minute stereo Acuity test. Chart: Minute Stereo Vision Chart Auxiliary Lens: Polarized Filter with 135 degrees for right eye, and 45 degreees for left eye.

  • Page 104: 11. Etc. Convenient Function

    11. Etc. Convenient Function EDR 7800 serves some convenient function with Key pad combination to test easily and promptly. 11.1 11.1 11.1 11.1 F i e l d S e l e c t i o n S h o r t c u t K e y Change a Field mode in order of “S ->...

  • Page 105: Test Mode Comparison (Compare Function)

    11.4 11.4 11.4 11.4 T e s t M o d e C o m p a r i s o n ( C O M P A R E f u n c t i o n ) E D R 7 8 0 0 s e r v e s C O M P A R E M o d e t o i n t u i t i o n a l l y c o m p a r e w i t h t h e r e s u l t o f S u b j e c t i v e V i s i o n T e s t a n d R e f / K e r a t o m e t e r , L e n s m e t e r T e s t M o d e Y o u c a n s e l e c t t h e m o d e w h i c h w a n t s t o m o v e t h e c e n t e r a r e a o n t o u c h s c r e e n ( W h e n p r e s s t h e m o d e )

  • Page 106: System Test Shortcut Key

    11.8 11.8 11.8 11.8 S Y S T E M T E S T S h o r t c u t K e y K e y p a d b u t t o n O p e r a t i o n Dial or [+] / [-] Item movement Dial button...

  • Page 107: Lamp Shortcut Key

    11.15 11.15 11.15 11.15 L A M P S h o r t c u t K e y K e y p a d b u t t o n O p e r a t i o n Dial or [+] / [-] Brightness control of Body’s “Near LED”...
  • Page 108 12. Test Result Display and Print out The test result of EDR 7800 is available on the screen or on papers by printing. 12.1 12.1 12.1 12.1 V i e w t h e R e s u l t S c r e e n Press [MENU] button or direct button on touch screen and choose the [TEST RESULT] to check test result on the screen.
  • Page 109 ( N E A R ) 0 0 . 0 0 S P H 0 0 . 0 0 0 0 . 0 0 C Y L 0 0 . 0 0 A X S - - < R > - - - - [ F I N ] - - - - < L > - - F i n a l R e s u l t f o r P r e s c r i p t o n ( F A R ) - 0 1 .
  • Page 110 B I 0 0 . 5 0 X △ B O 0 0 . 5 0 0 0 . 0 0 Y △ 0 0 . 0 0 * V O N G R A E F E V o n G r a e f e T e s t B I 0 0 .
  • Page 111 Basically, keep this instrument clean. Don’ t use volatile object, thinner or benzene, etc. Polish each part with a dry cloth containing detergent solution. • Model of the instrument : EDR 7800 • Serial Number : 7-digit characters indicated on the name plate •...
  • Page 112 EMC (IEC 60601-1-2: 2007) Guidance and manufacturer's declaration - electromagnetic emissions The EDR 7800 is intended for use in the electromagnetic environment specified below. The customer or the user of the EDR 7800 should assure that it is used in such an environment.
  • Page 113 Guidance and manufacturer's declaration - electromagnetic immunity The EDR 7800 is intended for use in the electromagnetic environment specified below. The customer or the user of the EDR 7800 should assure that it is used in such an environment. IEC 60601 test...
  • Page 114 If the measured field strength in the location in which the EDR 7800 is used exceeds the applicable RF compliance level above, the EDR 7800 should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the EDR 7800.
  • Page 115 Recommended separation distances between portable and mobile RF communications equipment and the EDR 7800 The EDR 7800 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the EDR 7800 can help prevent electromagnetic interference...
  • Page 116 15. Disposal of waste products W h e n d i s p o s i n g o f t h e p r o d u c t s b e l o w t o c o n t a c t u s 9 9 9 0 N W 1 4 S t r 9 9 9 0 N W 1 4 S t r e e t , S u i t e 1 0 5 D o r a l , F L 3 3 1 7 2 U S A 9 9 9 0 N W 1 4 S t r...
  • Page 117 [ A p p e n d i x ] H a r d w a r e S p e c i f i c a t o n Measuring Range Spherical Lens -29.00 ~ +26.75D (Regular) -19.00 ~ +16.75D (Cross Cylinder, Prism Test) (Step: 0.12D / 0.25D / 0.5D / 1D / 2D / 3D) Cylinder Lens 0.00 ~ 8.75D...
  • Page 118 1 1 6...

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