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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

focal power

Eyewear; Optometry

General term comprising the spherical and astigmatic vertex powers of a spectacle lens.

focimeter

Eyewear; Optometry

An instrument that is used to measure vertex powers and prismatic effects of spectacle and contact lenses, to orientate and mark uncut lenses, and to verify the correct mounting of lenses in ...

focusing telescopic device

Eyewear; Optometry

Device intended to be adjusted by the user for a range of object distances.

free working distance

Eyewear; Optometry

Distance between the most anterior portion of a telemicroscope and the object.

front vertex power

Eyewear; Optometry

Reciprocal of the paraxial front vertex focal length.

fusion

Eyewear; Optometry

Combination of the image impressions of the two eyes.

geometrical centre

Eyewear; Optometry

Intersection of the horizontal and vertical centrelines of the shape of the lens blank or uncut lens.

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