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00032_Field_32.txt
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1997-10-28
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COMPUTERIZED VIDEOKERATOSCOPES DATA DISPLAY
Curvature Maps
The maps can be displayed on an absolute
or a relative scale. The absolute scale is
a set dioptric difference between colors
which covers the whole range of normal
corneal curvatures. With the relative
scale setting, the upper and lower values
are determined by the steepest and
flattest values for the particular cornea
being evaluated. The relative maps have
smaller differences between color steps.
The relative scales are best to see
differences at different parts on the
cornea or to compare the maps of the
same eye at different points in time.
The absolute scales are useful when
comparing a number of different eyes
since the same color on every map
represents the same dioptric value.