Eyewear

Eyewear

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

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Eyewear > Eye surgery

contrast sensitivity

Eyewear; Optometry

The ability to perceive differences between an object and its background.

sphere

Eyewear; Optometry

Term meaning spherical refractive error of hyperopia or myopia.

munnerlyn formula

Eyewear; Optometry

Named for engineer Charles R. Munnerlyn, Ph.D, who pioneered the technology for vision correction based on the excimer laser. This is the basic formula to calculate the amount of ...

starbursts

Eyewear; Optometry

A known complication of refractive surgery that causes images from light sources to blur with spikes radiating out from the center. Starbursts also occur naturally without ...

mydriasis

Eyewear; Optometry

Pupillary dilation.

convex lens

Eyewear; Optometry

A lens with a bulging surface like the outer surface of a ball. Convex lenses are plus power lenses and are used to correct hyperopia or farsightedness. Also used for reading ...