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

Clip-on

Health care; Optometry

Type of glasses that attaches to your regular glasses, such as clip-on sunglasses.

Contrast sensitivity

Health care; Optometry

The ability of the eye to detect the line of demarcation between an object and its background or an adjacent object.

Temple

Health care; Optometry

The arm of a pair of glasses, running from the ear to the lens area.

Rigid Gas Permeable (RGP)

Health care; Optometry

Type of contact lens made of breathable plastic that is custom-fit to the shape of the cornea. RGPs are the successor to old-fashioned hard lenses, which are now virtually obsolete.

Pupillary distance

Health care; Optometry

This is the distance between the centre of each pupil. Opticians use a special ruler to measure your pupillary distance before ordering your eyeglasses. It is an essential measurement because the ...

Pupil

Health care; Optometry

The round, dark centre of the eye, which opens and closes to regulate the amount of light the retina receives.

Myasthenia gravis

Health care; Optometry

Weakness of the voluntary muscles, believed to be autoimmune in nature. Symptoms include double vision and eyelid ptosis; patients sometimes have non-eye symptoms as well, such as difficulty ...