Contact Lenses

Since February 2004, federal law gives all U.S. consumers the right to a copy of their contact lens prescription. 

Vision Glossary by Letter
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Sclera
The tough, white, outer layer (coat) of the eyeball that, along with the cornea, protects the eyeball.

Snellen Visual Acuity Chart
One of many charts used to measure vision.

Stroma
The middle, thickest layer of tissue in the cornea.


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