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

The test performed during an eye exam to determine the eyeglass lens powers needed for optimum visual acuity. An automated refraction uses an instrument that does not require the patient to respond. ...

Cystoid macular edoema (CME)

Health care; Optometry

Swelling of the eye's macula, caused by an excessive amount of fluid.

The American National Standards Institute (ANSI)

Health care; Optometry

A private, non-profit organisation that coordinates efforts to develop standards for manufacturing many different products, including eyeglass lenses. For example, certain ANSI standards define ...

Carotenoid

Health care; Optometry

A pigmented substance that adds colour such as red, orange, or yellow to plants. Carotenoids have antioxidant properties that protect cells against damage from free radicals, unstable atoms that can ...

Vascular birthmark

Health care; Optometry

A pink, red or purple mark (flat or slightly raised), typically on an infant's face or neck, caused by a malformation of blood vessels. Types of vascular birthmarks include capillary hemangiomas ...

Zeaxanthin

Health care; Optometry

A pigmented substance (carotenoid) found in yellow or orange plants, such as corn and squash, or in dark green, leafy vegetables. Zeaxanthin is being investigated for a possible association with ...

Iris

Health care; Optometry

A pigmented membrane that lies between the cornea and the lens; it acts as a diaphragm to widen or narrow the opening called the pupil, thereby controlling the amount of light that enters the eye.