5 Terms
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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
Distance reference point
Eyewear; Optometry
That point on the front surface of the lens at which the dioptric power for the distance portion apply.
Distance visual point
Eyewear; Optometry
Assumed position of the visual point on a lens which is used for distance vision under given conditions.
Diverging lens
Eyewear; Optometry
Lens which causes parallel incident light to diverge from a virtual focus. Also known as minus-power lens.
Dividing line
Eyewear; Optometry
Boundary between two adjacent portions of a multifocal or lenticular lens.
Effective power
Eyewear; Optometry
Dioptric power of the lens required at an altered vertex distance.
Edging machine
Eyewear; Optometry
Machinery profiling (edging) spectacle lenses designed for insertion into spectacle frames.
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