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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 > Contact lenses 
munnerlyn formula
Eyewear; Optometry
Named for engineer Charles R. Munnerlyn, Ph.D, who pioneered the technology for vision correction based on the excimer laser. This is the basic formula to calculate the amount of ...
starbursts
Eyewear; Optometry
A known complication of refractive surgery that causes images from light sources to blur with spikes radiating out from the center. Starbursts also occur naturally without ...
convex lens
Eyewear; Optometry
A lens with a bulging surface like the outer surface of a ball. Convex lenses are plus power lenses and are used to correct hyperopia or farsightedness. Also used for reading ...
stereopsis
Eyewear; Optometry
The ability to perceive three-dimensional depth due to the distance between a person's two eyes.
Sub-categories
- Contact lenses (3070)
- Eye surgery (2811)
- Glasses (802)
- Optometry (16172)
- Sunglasses (524)