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

Decentration

Eyewear; Optometry

A complication of refractive surgery. In perfect centration, the centre of the corneal ablation exactly coincides with the centre of the visual axis and/or pupil. This is like looking through the ...

Ultraviolet radiation

Eyewear; Optometry

Optical radiation with a wavelength shorter than that of visible radiation, but longer than x-rays.

Refractive lens exchange (RLE)

Refractive Lens Exchange (RLE), also known as Clear Lens Exchange (CLE), is essentially cataract surgery without the cataract. The crystalline lens is removed from the eye and replaced with a clear ...

Lattice degeneration

Eyewear; Optometry

Lattice degeneration is a hereditary vitreoretinal degeneration of the retina, causing holes most often in the periphery and possibly leading to retinal detachment. Lattice is a commonly a ...

Choroid

Eyewear; Optometry

The thin, blood-rich membrane that covers the white of the eyeball; responsible for supplying blood to the retina.

Refractive surgery

Eyewear; Optometry

Any surgical procedure which permanently alters the focusing power of the eye in order to change refractive errors. Refractive surgery may include corneal surgery such as Lasik, LASEK, PRK, Intacs, ...

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 better eye. Note these ...