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ā Absolute: Absolute scale
The absolute scale uses the color coding developed by
Stephan D. Klyce, Ph.D of Louisiana State University.
Individual refractive powers are uniquely shown in
corresponding colors in a range of 26 dioptries, so the
absolute scale allows you to easily compare the data with
other measurement results. The range of absolute scale is
9.0 ā 101.5 diopters.
The center of the scale is divided into 11 intervals in
increments of 1.5 diopters, regarding 43.0 diopters (the
standard average of the normal eye) to be the center
value, which is displayed in bright green.
The areas above and below the 11 scales is divided in
increments of 5.0 diopters. Blue becomes darker as the
corneal curvature increases outside of the standard range
of 11 intervals.
In contrast, red becomes darker as the corneal curvature
decreases.
(Fig. 2)
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