Nidek Medical ARK-1S, Operator'S Manual

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46
OPERATING PROCEDURE: Corrected Visual Acuity Measurement (Subjective Refractive Error Measurement)
4
After the contrast visual acuity measurement is complete, press the contrast/glare
button to display the glare visual acuity measurement screen.
“GLARE:ON” is displayed on the screen and a chart
*1
is presented to the patient with the right and left
lamps illuminated.
5
In the same manner as distance visual acuity measurement, press the chart up
or chart down
button to determine the limit of the VA value (GLARE) that the
patient can read.
Other button operations
6
After the glare visual acuity measurement is complete, press the contrast/glare
button to return to the distance visual acuity measurement screen.
Contrast/glare
Confirms the glare VA value (GLARE) and returns to the distance visual acuity
measurement screen.
Return
Exits from corrected visual acuity measurement mode and returns to the AR
(AR/KM) measurement screen.
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