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9.1
RK Mode
RK mode with corneal radius and refraction can be measured.
[ Drawing 9 ] RK Mode Screen
9.1.1
Select RK mode
a. Described at the beginning of this chapter [The Change of measurement mode] how to
select the RK mode by referring.
9.1.2
Adjust the patient's eye
a. Patients sit in a chair, then the patient's chin and the forehead is to be expected on the base
of the forehead and chin rest.
b. Patients to face up to the patient's eye level height chin rest alignment mark to adjust the
height of chin rest fit.
9.1.3
Focus
a. Push the lever to the left of the screen to appear on the patient's right eye aligned.
b. Central target for patients to balloon to see the red part of the request.
c. If the ring is on the screen obscured by eyelids, subjects with eyes wide open until the end of
the measurement is requested.
d. Looking at the screen ring internal / external aiming at the mark to adjust the lever to position.
If the ring is located near the center of the screen near the Focus light mark Optical aiming
(bright spot) will appear. Focus light mark on optical aiming to position the lever in the left /
right tilt with the return or adjustment. Lever forward / backward moving the focus ring to
sharpen. Focus bar located above the focus, if correct, is represented by one bar.
9.1.4
Measurement
a. Touch measurement button.
b. Upon completion of measurements at the bottom left of the screen is displayed and the bottom
right of REF measurement results are displayed in the KER measurement. If the measurement
is not normally a "RETRY" or "AGAIN" will be displayed.
c. Depending on user setup system selected in the VD, CYL, and the display format can be
changed.
9.1.5
Repeated measurements
a. Repeated measurements are necessary.
b. When measuring every last measure of the displays
9.1.6
Measurement of opposite eye
a. Push the lever to the right to appear on the patient's left eye focused on the contralateral eye
Optical
aiming
Ring
