Optometry

Optometry

A health care profession concerned with eyes and related structures, as well as vision, visual systems, and vision information processing in humans. The practice of eye and vision care.

Industry: Eyewear; Health care

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Optometry

Vision problem in which objects appear distorted. For example, straight lines may appear to be wavy, curved or bent, objects may appear to be larger or smaller than they actually are, or closer or ...

Monofocal

Health care; Optometry

Type of spectacle lens, intraocular lens (IOL) or contact lens design that has only one area through which the eye focuses. A multifocal lens has more than one focal area, enabling sight at multiple ...

Retina

Health care; Optometry

The sensory membrane that lines the back of the eye. Cells in the retina called photoreceptors transform light energy into electrical signals that are transmitted to the brain by way of the optic ...

Optic nerve problem

Health care; Optometry

The optic nerve (second cranial nerve) is the part of the eye that carries stimuli from the rods and cones to the brain. Problems such as inflammation (optic neuritis), tumours and swelling can lead ...

ANSI Z87.1-2003 Standard

Health care; Optometry

The American National Standards Institute's practise for Occupational and Educational Eye and Face Protection; eyewear that meets this standard is considered safer than eyewear that does not.

Refractive error

Health care; Optometry

When light rays don't properly refract from the cornea to the retina, it is a refractive error. This can take the form of myopia (nearsightedness), hyperopia (farsightedness) or astigmatism.

Rheopheresis

Health care; Optometry

The RHEO Procedure ("rheopheresis") is a method of blood filtration (apheresis) for treatment of dry age-related macular degeneration that removes large proteins and fatty components from the blood ...