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00210_Field_210.txt
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1997-10-28
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OPHTHALMOMETER MEASURING TECHNIQUE
Making the Measurement
Once the mires are properly aligned,
the dioptric power (and/or radii) of the
cornea can be read from the power drums.
The axes are read from the scale on the
body of the instrument beyond the power
drums.
The power in each meridian should be
read to the nearest 0.12 D. and axis to
the nearest 1 degree.
The photograph shows a horizontal power
of 43.00 D. at 15 degrees.