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

atoric lens

Eyewear; Optometry

Lens with astigmatic power in which at least one principal meridian is not spherical.

progressive power lens

Eyewear; Optometry

Lens with a surface which is not rotationally symmetrical, with continuous change of focal power over a part or the whole of the lens.

progression zone

Eyewear; Optometry

Transition zone between the distance and near zones of a progressive lens.

prismatic test lens

Eyewear; Optometry

Lenses used for the calibration of the prismatic deviation measurements by focimeters, in which the prismatic power of each lens is expressed in centimetres deviation per metre distance (cm/m).

bioactinic

Eyewear; Optometry

Exhibiting or referring to bioactinism.

viewing lenses

Eyewear; Optometry

Lenses which are positioned between the observer's eye(s) and the eye to be examined in order to achieve optimum focus.

visual field

Eyewear; Optometry

Sum of all directions from which the eye may perceive visual stimulation at a defined moment in time and the performance of the perception of this stimulation. Also known as field of view.