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00136_Field_136.txt
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1997-10-28
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19 lines
ALCON HAND HELD AUTO-KERATOMETER
Measuring Technique
If you are misaligned you will see four
green lights off to the side (figure 1).
If you have the instrument too close to
the patient you will see only 4 green
lights which will be near the center
(figure 2)
If you are too far from the patient you
will see only 4 green lights which will be
in the periphery (figure 3).