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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
cylindrical power
Eyewear; Optometry
Plus or minus the astigmatic difference, depending on the principal meridian chosen for reference.
cylindrical test lens
Eyewear; Optometry
Lenses with cylindrical faces which are used to calibrate the axis marker and axis indicator with respect to the adjustment orientation of the rail.
decentration
Eyewear; Optometry
Displacement of the centration point from the boxed centre of the shape of the edged lens.
depth perception
Eyewear; Optometry
Perception of the distance at which objects points are located from the wearer.
design reference point
Eyewear; Optometry
That point or those points, stipulated by the manufacturer, on the finished surface of a lens blank or on the front surface of the finished lens, at which the design specifications apply.
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