77
D
D
i
i
g
g
i
i
t
t
a
a
l
l
R
R
e
e
f
f
r
r
a
a
c
c
t
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o
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r
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E
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D
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7
7
8
8
0
0
0
0
10.5
10.5
10.5
10.5
Negative Relative Accommodation test
Purpose: In subjective test, estimate the negative relative accommodation.
Chart: Near Vision Chart
Auxiliary Lens: None
Target: Calculate the value of BREAK and RECOVERY for left, right and both eyes.
Way of Test
1. On Special Chart clause of touch screen, press [NADD #] and [NRA] buttons
to enter the Negative Relative Accommodation Test Mode or you can setup the
Negative Relative Accommodation Test Mode by pressing [TEST] button and
choosing [NEGATIVE RELATIVE ACCOM.].
2. Press [R] [BIN] [L] to choose the field for test.
3. Turn the dial counterclockwise
.
When the chart is beginning to be blurred, press (RECOVERY) on the left dialog box
of touch screen.
4. If recovered point is found turning the dial clockwise, press [OK] button to conclude
the test on the left dialog box of touch screen.
[Figure 10-5] Negative Relative Accommodation Test
