VX90 - User Manual
41
VIII.4 - Model eye measurement
The model eye should be measured and the
accuracy checked at regular intervals.
To set up the model eye, insert the guide groove of
the model eye to the chinrest tissue pin.
Set the display step of spherical/cylindrical to 0.12D
and perform measurement.
2．Position the model eye
Take down the chin rest paper, alignment the holes of
the model eye base and chin rest pad and then insert
the chin rest tissue fixed pins.
3． Measuring position adjustment and focus
When the model eye is positioned, move the joystick back and forth to focus until there are
eight luminous points appear.
Carefully move the joystick up and down, left and right, until there is a red centering mark
appearing.
4．Measuring
As mentioned above, adjust the position of model eye and focus, then press the measure button.
If the measurement result is not within the tolerances given on the model eye, call your dealer.
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