Prescriptions for glasses have two main components: shape
The shape of a lens determines
the type of correction.
The power of a lens determines the
amount of correction. It is specified in
diopters. The higher the number of diopters, the more
vision correction the lens provides.
October 16, 2012
Adam Husney, MD - Family Medicine
& Christopher J. Rudnisky, MD, MPH, FRCSC - Ophthalmology
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