Nidek Medical RT-5100, Operator'S Manual

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21 Point Exams (only for Plus Package) 21 Point Exams (only for Plus Package)
5
5.2.7 #20 Positive relative accommodation (PRA)
Setting contents:
Use chart
Near point vertical line chart
Set the near point chart II H (VA1.0) or G (VA0.63) manually.
Auxiliary lens
(R/L)
Binocular open
Set power
Subj (N)
[Procedure example]
1
With the #7 Subjective value entered, press
[#20 PRA].
Numeric value field
Operation message
2
Set the near point chart II H (VA1.0) or G
(VA0.63) manually at the 40cm position.
3
Present the vertical line chart and let the
patient read the highest VA letter chart that
the patient can read correctly. According to
the operation message on the left bottom of
the screen, gradually turn the dial clockwise
and press [Blur] when the chart appears
blur.
The spherical powers are stored as blur
point.
The [Blur] indication is highlighted. It means that the spherical powers have been entered.
When highlight [Blur] is pressed again, the entered spherical powers are cleared.
4
According to the operation message on the left bottom of the screen, gradually turn the
dial counterclockwise and press [Recov] when the chart appears clearly again.
The spherical powers are stored as recovery point.
Pressing or , or numeric value field to cover the measuring window measures the
Positive relative accommodation for single eye.
161221687130 承認済
Uncontrolled copy when printed.