Nidek Medical ARK-1S, Руководство оператора

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24
OPERATING PROCEDURE: Measurement Method
5
Prepare the patient.
1)
If necessary, read the patient ID using the optional
barcode scanner or magnetic card reader.
*1
Reading Patient ID

(page 68)
2)
Wipe the forehead rest
(*A)
and chinrest
(*B)
with
clean absorbent cotton or gauze dampened with rub-
bing alcohol.
When using the chinrest paper, remove one sheet of
paper.
3)
Instruct the patient to remove their glasses or contact lenses and sit on the chair.
4)
Have the patient place their chin on the chinrest as
far forward as possible with their forehead resting
gently on the forehead rest.
5)
Adjust the height of the chinrest with the chinrest up/
down button (
/
) so that the patient’s eyes are
roughly aligned with the eye level marker
(*C)
.
Always look at the patient when moving the chinrest
up or down.
For rough height adjustment, have the patient move
away from the forehead rest and chinrest.
CYL+ + reading Indicates the cylindrical refractive error by + reading.
CYL± Mix reading
Indicates the cylindrical refractive error by + reading when the refrac-
tive error is positive for any axis angle. Indicates the cylindrical refrac-
tive error by - reading in other cases.
• Cylinder mode can be changed even after measurement.
• All saved data is printed out according to the CYL mode set at the time of printing.
*1. Patient ID may be read at any time prior to printing.
*A
*B
• Reassure the patient before measurement by explaining the following.
“This device measures your eye with infrared rays to find which kind of lens fits you. The infrared rays do
no harm to your eyes.”
*C