Contact lenses

Contact lenses

Industry: Eyewear

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Punctal occlusion

Eyewear; Optometry

Closing off the punctum, either with plugs, cauterization, or other natural or artificial methods

Keratoconus

Eyewear; Optometry

A disorder that involves a thinning of the central cornea. The normally round shape of the cornea becomes distorted. A cone-like bulge develops, resulting in significant visual impairment. ...

Punctal plugs

Eyewear; Optometry

Small silicone or plastic plugs that are inserted into any or all of the punctum.

Bowman's layer

Eyewear; Optometry

A layer of cells in the cornea. between the epithelium and stroma. The Bowman's layer appears to be without specific purpose.

Punctum

Eyewear; Optometry

Tear drains around the eye. There are two in the upper lid and two in the lower lid.

Keratomileusis

Eyewear; Optometry

A refractive surgical technique where a partial thickness circular flap of cornea is removed, frozen, reshaped on a lathe and replaced upon the cornea. The lathe can shape either a convex or a ...

Broadbeam

Eyewear; Optometry

This is a method of applying excimer laser energy. A beam of energy is applied across the entire ablation zone at one time. See also variable beam and flying spot.