Nidek Medical ARK-1S, Руководство оператора

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OPERATING PROCEDURE: AR (refractive error) and KM (corneal curvature radius) Measurements
3.3 AR (refractive error) and KM (corneal curvature radius) Mea-
surements

Perform AR (refractive error) and KM (corneal curvature radius) measurements.
The measurement items of the measurement mode (AR/KM measurement, AR measurement, or KM
measurement) specified by pressing the R/K
button are displayed on the screen.
1
Give the following instructions to the patient. “Look
through the measuring window. You will see the picture
of a balloon. Look at the center of it without straining”.
2
Manipulate the joystick to display the patient’s
eye on the screen.
By manipulating the joystick right, left, forward, and back-
ward, the main unit moves right, left, forward, and back-
ward. By rotating the upper part of the joystick, the
measuring unit moves up and down.
Adjust the measurement position with right, left, up and
down movements and the focus with forward and back-
ward movements.
3
Perform alignment and focusing.
Manually align the device with the mire ring
(*A)
and bring the
eye into focus.
The methods of alignment and focusing differ depending on
the “62. TRACKING SW” parameter setting.
Setting contents

“3.2 Measurement Method” (page
22)
Perform alignment by positioning the target within the mire
ring reflected on the patient’s eye
(*B)
.
Perform focusing according to the indication of the focusing
indicator
(*C)
displayed on the screen.
• Auto tracking or auto shot may not function on keratoconus or postoperative corneas.
In such a case, turn off the auto tracking and auto shot functions before measurement.
• If eyelashes obstruct the minimum pupil diameter mark, correct AR measurement may not be possi-
ble. If the eyelid or eyelashes obstruct the mire ring, KM measurement may not be possible.
In such cases, instruct the patient to open their eye wider.
If the patient cannot open their eye wider, lift the patient’s lid, paying attention not to press against the
eyeball.
ᵏ
㹐㸸㸱ࠉ㸦㸷㸧ࠉ㹉㸸㸱 㹐㸸㸱ࠉ㸦㸷㸧ࠉ㹉㸸㸱
㹑㸫ࠉ㸯 㹑㸫ࠉ㸯㸬㸰㸳ࠉ㹐㸯ࠉࠉ㸵㸬㸷㸶ࠉ㸯㸵㸱 㸰㸳ࠉ㹐㸯ࠉࠉ㸵㸬㸷㸶ࠉ㸯㸵㸱
㹁㸫ࠉ㸮 㹁㸫ࠉ㸮㸬㸵㸳ࠉ㹐㸰ࠉࠉ㸵㸬㸳㸷ࠉࠉ㸶㸱 㸵㸳ࠉ㹐㸰ࠉࠉ㸵㸬㸳㸷ࠉࠉ㸶㸱
㸿ࠉࠉࠉࠉࠉ㸰ࠉ 㸿ࠉࠉࠉࠉࠉ㸰ࠉ
*A
*B
*C