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7.6.3 Determine Size
a. After the measurement button on the joystick has been pressed, the monitor picture freezes
and two bars show up.
b. Move the yellow bar to the left side of the pupil/cornea using
Move the blue bar to the right side using
c. The resulting radius (in mm) is shown on the SIZE icon..
d. Press the [ZOOM] button to switch between zoom levels 1x to 3x.
e. Press the measurement button on the joystick to save the value and continue with the next
measurement. The screen shows the life picture again.
NOTE
It’s not possible to measure the corneal curvature properly if the focus is
on the iris.
[ Drawing 18 ] SIZE Mode screen
Measurement
Bar
