Eyewear

Eyewear

Eyeglasses, goggles or other objects worn over the eyes, usually to aid vision or for protective purposes.

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Eyewear > Optometry

central serous retinopathy

Health care; Optometry

Disorder in which fluid collects under the central retina (macular area) and disrupts central vision. The cause is unknown. Symptoms include blurred central vision and ...

porphyria

Health care; Optometry

Disorder in which the body produces too much of a compound called porphyrin and releases it in the urine, causing a reddish color. Other symptoms include light sensitivity, skin ...

Dk/t

Health care; Optometry

Dk is the oxygen permeability of a contact lens material; t is the thickness of the contact lens design. Dk/t is a measurement of a contact lens's oxygen transmissibility.

optometrist

Health care; Optometry

Doctors of optometry (ODs) examine eyes for both vision and health problems, prescribe glasses, and fit contact lenses. They can prescribe many ophthalmic medications and may ...

ptosis

Health care; Optometry

Drooping eyelid. Congenital ptosis is caused by a problem with the levator muscle (which lifts the eyelid). In adults, ptosis is commonly caused by the aging of the levator's ...

beta blocker

Health care; Optometry

Drug that widens or dilates blood vessels, thus enabling more normal flow of blood. Topical beta blockers applied as eye drops also can lessen fluid production and lower internal ...