Keystone Projector 1157 User Manual

Vision Screening with the DVS-V Model 1157 PUBLICATION NO. 5920 Instruction Manual KEYSTONE VIEW DIVISION OF MAST/KEYSTONE

Actual Test A B C 1. 20 = 745932 25 = 578236 30 = 346752 2. 40 = 534268 50 = 752386 60 = 6254 3. 70 = 8453 100 = 85 200 = 3 Proceed as

Horizontal Field Testing This test shows a subject's range of vision to each side when he/she looks straight ahead. Having the subject dir

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Contents The DVS-V Test Instrument. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 DVS-V Maintenance .

The Keystone DVS-V Vision Screener represents the fifth gen-eration of electro/mechanical vision test instruments. All func-tions are under push butt

Under normal conditions of use, the DVS-V will require little maintenance if it is protected by a dust cover when not in use. Virtually no repair or

E A C B D F Elliptech Control Unit The newly designed DVS-V Elliptech Soft-Touch hand control unit makes for easy operations of the vision screener.

Test Guide Subject to wear any glasses normally used when driving. Test #1: Quick Acuity Nine separate blocks containing three digits of 20/40 acuit

Test Questions and Referral Guide Notes: All tests are given with both eyes open at all times. Subject to wear any glasses normally used for driving

Test #3 & #4 Depth Perception & Sign Recognition Ask the subject: “Please identify all six road signs. What do they mean?”

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