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It is possible to choose three types of contrasts:
1. Red-green, in 100% contrast,
2. White on black background
3. Black on white background, with choice of contrasts from 0 to 100%.
Procedure - Determine the visual acuity of the patient
Select the optotypes on the touch screen.
Check that the optotypes that appear correctly on the test presentation screen.
Select the right eye, the left eye or both eyes by using the keys [R, L or BINO] on the console keyboard.
Scroll through the acuity tests using the vertical arrows on the console keyboard.
Ask the patient the following question:
“
Look at the test, tell me what the smallest characters are that you can make out, and read them aloud
(or describe them)
.”
If the patient manages to make out 3 out of 5 optotypes on the same line of acuity, the level of acuity is
considered as achieved.
>
U
SER
MANUAL
> P
ERFORMANCE
OF
TESTS
DURING
A
REFRACTION
EXAMINATION
Vision-R 700 - Essilor automatic phoropter > V1 - 09-2020
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Содержание VISION-R 700
Страница 1: ...USER MANUAL...
Страница 4: ...I INTRODUCTION...
Страница 8: ...II INSTRUMENT...
Страница 16: ...III ADJUSTMENTS BEFORE THE EXAMINATION...
Страница 24: ...IV BASIC FUNCTIONS FOR PERFORMING A REFRACTION EXAMINATION...
Страница 37: ...V PERFORMANCE OF TESTS DURING A REFRACTION EXAMINATION...
Страница 76: ...VI MEASUREMENT...
Страница 80: ...VII REFRACTION PROGRAMS...
Страница 93: ...VIII INSTRUMENT SETTINGS...
Страница 109: ...IX TROUBLESHOOTING...
Страница 111: ...X TECHNICAL DATA...
Страница 114: ...XI CAUTIONS WARNINGS...
Страница 123: ...No undesirable side effects USER MANUAL CAUTIONS WARNINGS 123 Vision R 700 Essilor automatic phoropter V1 09 2020...
Страница 124: ...XII QR CODE...
Страница 125: ...USER MANUAL QR CODE 125 Vision R 700 Essilor automatic phoropter V1 09 2020...
Страница 126: ...USER MANUAL QR CODE Vision R 700 Essilor automatic phoropter V1 09 2020 126...
Страница 127: ...USER MANUAL QR CODE 127 Vision R 700 Essilor automatic phoropter V1 09 2020...