Nidek Medical ARK-1S, Operator'S Manual, Page: 61 / 112

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OPERATING PROCEDURE: Manual Measurement
3.8.3 PD (Pupillary Distance) measurement
1
Press the CS/PS/PD button to enter PD mea-
surement mode.
“PD”, “R”, “C”, and “L” are displayed on the screen.
2
Instruct the patient not to move their head or eyes during measurement.
3
After each proper alignment of the right eye and left
eye, press the start button.
Pressing the start button after proper alignment with the mid-
dle (bridge) of the PD allows monocular PD along with the
binocular to be measured.
4
When measurement is complete, the measured PD
is displayed on the screen.
When the R (Right) or L (Left) indication disappears, mea-
surement finishes.
To measure the monocular PD, press the start button in the
center (C).
• In manual PD measurement, five measurements can be saved. The latest PD value is displayed on
the measurement screen. The measured PD values (five measurements at the maximum) are
printed on the printed results in the order measured.
ᵏ
(17(5
3'
5&/
(17(5
ᵉ
3'
/
• If the patient’s head is tilted, straighten it before starting measurement.
To locate in the exact middle position, have the patient wear the frames marked in the middle and bring
the mark in focus.
• “R” (Right), “C” (Center) or “L” (Left) on the LCD disappears in order by pressing the start button to
indicate that detection of each position has been completed.
(17(5
3'
3'
ᵉ