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Evaluation
Tips
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For maximized visual acuity, select the highest visible
light transmission (VLT) possible within a group of
filter colors appropriate for the eye disorder. Then,
working from lightest to darkest, offer companion
products until the patient responds favorably. Use
a method of trial and error with various filter colors
and visible light transmissions to determine the filter.
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Where possible, allow for outdoor testing of colors.
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