Optometry

Optometry

A health care profession concerned with eyes and related structures, as well as vision, visual systems, and vision information processing in humans. The practice of eye and vision care.

Industry: Eyewear; Health care

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Optometry

One of a number of radially arranged imaginary lines, each of which passes through the centre of the pupil when viewing the eye head-on. Generally separated in one-degree increments, meridians are ...

Corneal dystrophy

Health care; Optometry

One of a group of conditions, usually hereditary, in which the cornea loses its transparency. The corneal surface is no longer smooth. Common forms include map-dot-fingerprint dystrophy, Fuch's ...

Transient ischemic attack (TIA)

Health care; Optometry

Often called a "ministroke," a TIA is a short-lived blood clot-induced blockage of the blood supply to the brain. Vision may be blurred; other symptoms may include numbness on one side of the body, ...

Polymethyl methacrylate (PMMA)

Health care; Optometry

Old-fashioned hard contacts were made of PMMA, which is not permeable; today's rigid lenses contain other polymers that allow oxygen to reach your eye.

Nose pad

Health care; Optometry

One of a pair of pads, usually clear, that rest on either side of your nose and help to support your glasses.

Antioxidant

Health care; Optometry

Substance that inhibits oxidation and can guard the body from damaging effects of free radicals. Molecules with one or more unpaired electrons, free radicals can destroy cells and play a role in ...

Laser-Assisted In Situ Keratomileusis (LASIK)

Health care; Optometry

Surgical procedure in which a tiny flap is cut in the top of the cornea, underlying corneal tissue is removed with an excimer laser, and the flap is put back in place. LASIK corrects myopia, ...