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00048_Field_48.txt
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1997-10-29
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COMPUTERIZED VIDEOKERATOSCOPES
Basic Procedures to Capture an Image
The instruments are different but they all require that the patient place their head in a headrest. The headrest or the instrument is adjusted so that the patientΓÇÖs head is within the appropriate range for alignment.
It is often necessary to turn
the patientΓÇÖs head slightly to
eliminate shadows from the
nose so the whole ring pattern
is reflected from the cornea.