Gilras GRK-7000, User Manual, Page: 59 / 82

58 Auto Ref/Keratometer GRK-7000 -------------------------------------------------------------
4. Adjustment of measurement position and focus
-
Ask the examinee to look at the internal fixed target.
-
Adjust the position so that the pupil shall be in between two(2) perpendi
cular bars by moving the operation lever.
-
Adjust the focus so that the corneal corner can be seen apparently.
NOTE
As adjusting the focus on the iris, it is impossible to measure the radius of
pupil exactly.
5. Measurement
-
As pushing the measurement button, the window shall be stopped.
- 
button and

button in the center is to adjust the movement of left
bar, and

button and

button in right side is to adjust the moveme
nt of right bar.
-
Move the relevant bar to left/right sides by pushing

button or

butt
on.
-
The measured value shall be indicated on the screen of monitor.
-
Store the measured value by pushing the measurement button.
-
The measured value is to be inputted beside “1” of right bottom of the s
creen. It is to be inputted beside “AVG” of left bottom of the screen as
well.
-
As pushing MODE button, the stopped window is cancelled, and “2” of le
ft bottom of the screen is to be selected as the bar. Every time pushing