3-70
● Normalized: Normalized scale
The normalized scale divides the range between the
maximum and minimum refractive powers of the patient’s
eye currently displayed into 11 colors. This shows a more
detailed refractive power distribution than the absolute
scale.
The normalized scale uses the 11 basic equal colors the
absolute scale.
As this scale uses a specific number of intervals, the
range of each color becomes wider when the difference
between the maximum and minimum refractive powers is
large; the range of each color becomes narrow when the
difference is small.
The minimum interval is 0.4 diopters. The first and last
intervals are calculated by the personal computer based
on the refractive power distribution chart, and refractive
powers outside of the range are included.
(Fig. 3)
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