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Contact Lens Series Volume 1.iso
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00028_Field_28.txt
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1997-10-28
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ALIGNING AND FOCUSING THE RING PATTERN
Aligning:
You will now see a live picture
of the rings reflected from the
patientΓÇÖs cornea (or their lids
or skin if align is off). First
align the instrument by using
the left and right arrow keys
on the keyboard to move the
unit right and left. Use the
PgUp and PgDn keys to move
the unit up and down. Center
the cross hair in the center ring.
Focusing:
You also have to focus the instrument by using the up and down arrow keys. Get the rings in sharp focus.