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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 > Optometry

vision therapy

Eyewear; Optometry

A treatment process for the improvement of visual perception and/or coordination of the two eyes for efficient and comfortable binocular vision (orthopedics, vision training, and ...

dilation

Eyewear; Optometry

A process by which the pupil is enlarged. Allows more light to the interior of the eye.

visual acuity

Eyewear; Optometry

Sharpness of vision, usually as measured with the use of a Snellen eye chart. 20/20 is considered normal visual acuity, though some people can see even better (such as 20/15 or ...

diopter

Eyewear; Optometry

A unit of measure of the refractive power if a lens. A one-diopter lens will focus parallel light rays one meter from the lens and a two-diopter lens will focus one-half of a ...

visual axis

Eyewear; Optometry

The central area of the cornea, pupil, and lens that light passes through to reach the retina and be "seen".

diplopia

Eyewear; Optometry

A condition in which a single object is perceived as two; also called double vision. Usually with both eyes open as in binocular diplopia, but can be with only one eye as in ...

visual field

Eyewear; Optometry

The area or extent of space visible to an eye in a given position of gaze. The central visual field is directly in front and the target at which we are looking. The peripheral ...

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