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Eyewear
Eyeglasses, goggles or other objects worn over the eyes, usually to aid vision or for protective purposes.
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Eyewear > Contact lenses 
legal blindness
Eyewear; Optometry
In the U.S., (1) Visual acuity of 20/200 or worse in the better eye with corrective lenses. (2) Visual field restricted to 20 degrees diameter or less (tunnel vision) in the ...
regression
Eyewear; Optometry
A return by the cornea toward the original refractive state. See Regression Details
ciliary muscles
Eyewear; Optometry
The muscles that relax the zonules to enable the crystalline lens to change shape for focusing.
lenticular astigmatism
Eyewear; Optometry
When the crystalline lens is not symmetrical. See Lenticular Astigmatism Details
ciliary processes
Eyewear; Optometry
The extensions or projections of the ciliary body that secrete aqueous humor.
Sub-categories
- Contact lenses (3070)
- Eye surgery (2811)
- Glasses (802)
- Optometry (16172)
- Sunglasses (524)