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

prism base

Eyewear; Optometry

Thickest part of a principal section of a prism.

prism dioptre

Eyewear; Optometry

Unit of prismatic deviation, equal to 100 tan d, where d is the angle of deviation, in degrees.

progressive side

Eyewear; Optometry

That side of a progressive-power lens on which the greater addition power ist situated.

finished lens

Eyewear; Optometry

Lens of which both sides have their final optical surface.

infrared radiation

Optometry; Optometry

Optical radiation with a wavelength longer than that of visible radiation.

vertex

Eyewear; Optometry

Point of intersection of the optical axis with a surface of a lens.

An optical illusion (also called a visual illusion) is an erroneous perception of reality in that the visually perceived images differ from the real world object. The information observed by the eye ...