Contact lenses

Contact lenses

Industry: Eyewear

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Pellucid marginal degeneration

Eyewear; Optometry

Pellucid marginal degeneration (PMD) is a rare, non-ulcerative thinning disorder involving the outer edge of the lower portion of the cornea. PMD causes a portion of the cornea to bulge forward, ...

Fluorescein angiography

Eyewear; Optometry

A test to examine blood vessels in the retina, choroid, and iris. A special dye is injected into a vein in the arm and pictures are taken as the dye passes through blood vessels in the eye.

All-laser lasik

Eyewear; Optometry

Lasik with the corneal flap being created by a femtosecond laser rather than with a mechanical microkeratome. See All-Laser Lasik details

Esotropia

Eyewear; Optometry

The position of the eyes in an over-converged position so that the non-fixating eye is turned inward.

An expert in the art and science of making and fitting glasses. The optician may also dispense and/or fit contact lenses, depending on local licencing practices. Visit ophthalmology, optometry, and ...

Excimer laser

Eyewear; Optometry

An argon-fluoride laser that emits ultraviolet light that is emitted in pulses at a wavelength of 193 nm. The term Excimer comes from the concept of an energised molecule with two identical ...