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Eyewear
Eyeglasses, goggles or other objects worn over the eyes, usually to aid vision or for protective purposes.
5Categories 7261Terms
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Eyewear > Optometry 
fitting point position
Eyewear; Optometry
Vertical and horizontal fitting distances and directions of the fitting point from the boxed centre of the lens shape.
fixation target
Eyewear; Optometry
Target used to locate the point where the patient should look during testing.
fixed-location stimulus perimeter
Eyewear; Optometry
Perimeter which utilizes test stimuli that are at permanent locations on the background.
focal length
Eyewear; Optometry
Distance in an optical system from the focal point to the corresponding principal point, measured along the optical axis (axis of symmetry).
focal point
Eyewear; Optometry
Image point conjugate to an infinitely distant object point on the optical axis.
Sub-categories
- Contact lenses (3070)
- Eye surgery (2811)
- Glasses (802)
- Optometry (16172)
- Sunglasses (524)