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5.3 MANUAL Measurement
Select MANUAL mode when measurement cannot be performed automatically due to
deformation of cornea, corneal disease such as keratitis, low reflection rate of cornea, or
when measuring a certain examinee is apt to result in error.
NOTE: Be sure to perform focusing precisely in MANUAL mode. Otherwise, measurement
error may occur.
Choose manual measurement
1
Press
display the word "
the monitor.
Display the examinee's eye on the monitor
2
Use the roller and the trackball
so that the right eye of the exam-
inee is seen approximately in the
center of the monitor.
Measurement head moves back and forth when the roller is turned.
It moves up and down when trackball is turned back and forth, and to right and left
when trackball is turned to right and left.
AUTO/MANU.
switch to
MANUAL
Adjustment of measurement head position
" on
MANUAL
3 0
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L
MANUAL
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5.3 MANUAL Measurement
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