10
2.5 SETTINGS OF DISPLAY PROPERTIES (ONLY WHEN A DVI DEVICE IS
USED AS A VISUAL ACUITY CHART) ................................................................................48
2.6 INITIAL SETTINGS (REGISTERING THE VISUAL ACUITY CHART OR OTHERS) .....51
3.BASIC OPERATIONS
3.1 FLOW OF OPERATIONS ...............................................................................................54
3.2 PREPARATION BEFORE MEASUREMENT ..................................................................54
3.2.1 PREPARATION FOR TEST ...................................................................................54
3.2.2 DATA INPUT ...........................................................................................................56
3.3 TEST ...............................................................................................................................59
SELECT THE TEST CHART AND EXECUTE THE TEST. ....................................... 59
SELECT THE PROGRAM COURSE AND EXECUTE THE TEST. ........................... 59
SELECT THE TEST NAME AND EXECUTE THE TEST. ......................................... 60
3.4 PRESCRIPTION .............................................................................................................61
3.5 OUTPUTTING THE RESULT .........................................................................................61
3.6 RESETTING ....................................................................................................................61
4.GENERAL OPTOMETRY PROCEDURE
4.1 DATA INPUT ...................................................................................................................62
4.2 FAR-POINT REFRACTIVE POWER MEASUREMENT .................................................62
REFRACTIVE POWER MEASUREMENT BY USING CROSS CYLINDER ............. 62
REFRACTIVE POWER MEASUREMENT USING ASTIGMATISM TEST CHART ... 63
4.3 NEAR-POINT REFRACTIVE POWER MEASUREMENT ...............................................63
4.4 BINOCULAR MEASUREMENT ......................................................................................64
FAR-POINT PHORIA ................................................................................................. 64
NEAR-POINT PHORIA .............................................................................................. 64
5.OPERATION FOR TESTS
5.1 VISUAL ACUITY TEST/SPHERICAL POWER/CYLINDER POWER CORRECTION ....65
5.1.1 VISUAL ACUITY MEASUREMENT ........................................................................65
5.1.2 R/G TEST ...............................................................................................................66
5.1.3 ASTIGMATISM TEST .............................................................................................68
5.1.4 CROSS CYLINDER TEST (JACKSON CROSS) ....................................................69
5.1.5 CROSS CYLINDER TEST (TOPCON CROSS) .....................................................71
5.1.6 SMART CROSS TEST ...........................................................................................73
5.1.7 BALANCE TEST (POLARIZATION) .......................................................................75
5.1.8 BALANCE TEST (POLARIZATION: 2-COLOR) .....................................................76
5.1.9 BALANCE TEST (PRISM) ......................................................................................78
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