Fashion aside, sunglasses serve an important purpose: protecting eyes from the harmful rays produced by the sun. You’re probably well aware of the need to protect your skin from the sun, but your eyes are just as important, if not more so.
The dangers of Ultraviolet Radiation: Ultraviolet (UV) radiation consists of invisible rays from the sun. The three bands of UV light are: UV-A, UV-B and UV-C.
UV-C (253.7nm wavelength) causes skin redness and eye irritation, but not considered to be dangerous.
UV-B is the most dangerous of all, it