If you are experiencing a medical emergency please dial 911 immediately
Prescriptions for glasses have two main components: shape and power.
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.
|Primary Medical Reviewer||Adam Husney, MD - Family Medicine|
|Specialist Medical Reviewer||Christopher J. Rudnisky, MD, MPH, FRCSC - Ophthalmology|
|Last Revised||October 16, 2012|
Last Revised: October 16, 2012
Author: Healthwise Staff
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