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Eyewear
Eyeglasses, goggles or other objects worn over the eyes, usually to aid vision or for protective purposes.
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Eyewear > 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 ...
Sub-categories
- Contact lenses (3070)
- Eye surgery (2811)
- Glasses (802)
- Optometry (16172)
- Sunglasses (524)