Contact Lenses

Decorative and special-effect contact lenses, like contact lenses intended for correcting vision, present serious risks to eye health if they are distributed without the appropriate involvement of a qualified eyecare professional. 

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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