Contact lenses

Contact lenses

Industry: Eyewear

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lacrimal gland

Eyewear; Optometry

The small almond-shaped structure that produces tears; located just above the outer corner of the eye.

canthus

Eyewear; Optometry

Demarcation between the sclera and nasal corner of the eye.

A surgical procedure that permanently alters the shape of the cornea by placing microscopically thin relaxing incisions in the peripheral cornea. The incisions cause the central portion of the cornea ...

lagophthalmos

Eyewear; Optometry

The inability or difficulty closing one's eye. This can be caused by Bell's Palsy, trauma, neurosurgery, bacterial infection, stroke, and cosmetic surgery. Common symptoms are severe dry eye and ...

cataract

Eyewear; Optometry

Also known as nuclear sclerosis. Cataracts are an opacity or clouding of the natural crystalline lens that may prevent a clear image from forming on the retina. Cataracts occur naturally and can be ...

wave length

Eyewear; Optometry

The distance between the top of one wave and the top of the next wave. The length of one complete wave of the argon fluoride excimer laser is 193 nm. This wavelength is in the far ultraviolet end of ...

dystrophy

Eyewear; Optometry

The term used to describe a wasting or weakening of biological material, such as corneal endothelial dystrophy (also known as Fuch's Dystrophy) being the wasting or weakening of the endothelium. E