Nidek Medical RT-5100, Руководство оператора

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57
OPERATING PROCEDURE Standard Program Refraction
2
Turn the dial counterclockwise to add SPH +0.25 D. When the chart appears blur, turn the dial
clockwise one increment.
The spherical power for the right eye is perfectly refined.
10
Press and follow the same procedures
as Steps 4 to 9 for the left eye.
The spherical power for the left eye is per-
fectly refined.
11
Press .
Three short beeps are audible.
12
Perform the binocular balance test.
1) Press .
The polarizing filters are placed in the mea-
suring windows;
Right eye: 135
°
, Left eye: 45
°
In the visual acuity of 20/20 or better, the
vision is fogged automatically for easy bal-
ance test when the “Fog for binocular bal-
ance” parameter is set to Yes.
2) Make the top and bottom lines appear
equal.
The top line is sharper.

Press and turn the dial counter-
clockwise one increment.
The bottom line is sharper.

Press and turn the dial counter-
clockwise one increment.
When the patient can see them equally, the
binocular vision is balanced.
• Binocular balance test can be performed in the binocular red-green test. See "4.4.2
Binocular red-green test" (page 165).
• When the patient cannot see the top and bottom lines equally in the binocular balance test,
determine with which eye they view the binocular balance chart more clearly while referring
to the visual acuity with LM data or dominant eye (Page 13).
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