Contributors in Glasses
Glasses
visible light
Eyewear; Glasses
The part of the light spectrum that the eye recognizes as color. The eye can be protected from excessive amounts of visible light through protective eyewear.
wrap frame
Eyewear; Glasses
A frame that wraps around your face. Wrap around sun glasses are popular.
20/20 vision
Eyewear; Glasses
The clarity or sharpness of vision measured at a distance of 20 feet. See also What is 20/20 Vision?
backside coating
Eyewear; Glasses
Polycarbonate lenses and high-index plastic lenses are thinner and have flatter prescription curves and so require a hard backside coating to protect them from scratching.