Keystone 1157 instruction manual Test #5 Binocular Acuity, Test #6 Right Eye Acuity, 100 200

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Test #5 Binocular Acuity

Actual Test

 

 

A

 

B

 

C

1.

20

= 857432

25

= 674235

30

= 382457

2.

40

= 563472

50

= 859423

60

= 8927

3.

70

= 2978

100

= 43

200

= 9

Note: Double Check the day/nite switch for desired position.

Ask your subject to read the first block of characters, Column A. If they are read correctly, he/she has 20/20 acuity, and they need not read any further. Five of six characters must be read. Continue across each row, from left to right until your test subject reads the characters in a block successfully.

The above table indicates the acuity level associated with the corresponding test characters: 20/20, 20/25, 20/30, etc… For example, in Row 1, Column B, “25” indicates that the acuity level tested here is 20/25.

Test #6 Right Eye Acuity

Actual Test

 

 

A

 

B

 

C

1.

20

= 547638

25

= 428576

30

= 943852

2.

40

= 795823

50

= 357248

60

= 7236

3.

70

= 9574

100

= 92

200

= 5

Proceed in the same fashion as test #5. Be sure to instruct the subject to keep both eyes open at all times. He/she may report that no characters are seen, in which case a visual suppression is evident and should be referred for a full professional eye examination.

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Contents Keystone View Contents DVS-V Test Instrument DVS-V Maintenance Elliptech Control Unit Test Guide Test #1 Quick Acuity at 20/40 Level Test Questions and Referral GuideTest #2 Color Deficiency Quick Acuity TestDepth / Signs Test #3 & #4 Depth Perception & Sign RecognitionTest #5 Binocular Acuity Test #6 Right Eye Acuity100 200 Test #7 Left Eye Acuity Test #8 PhoriaPhoria Horizontal Field Testing 85 70 55 Nasal55 70 Dickerson Road, Reno NV Phone 775 324-2799 800 Fax 775