Sun glasses are the protective wear which helps in preventing us from the heavy sunlight and the visible lights. It is sometimes used for the visual aid and is referred to as a sun cheater. It is most commonly used by the film actors and celebrities. It is popularly used in the beach in order to avoid the direct exposure to the sunlight. lexis nexis . beauty school . It gives clarity and comfort for the eyes. Sun glasses protect us from the visible and the invisible light rays. We should buy the sun glasses by measuring our lens size or else it will lead to skin cancer. The lenses of the sun glasses are fit close to the eyes. Sun glasses are used to avoid the direct eye contact and to hide the emotions. Nowadays wearing sunglasses became a style and a part of our costume. Sunglasses can also be used to hide the abnormal appearance of the eyes.

The normal standards of the sunglasses are ISO CE MARK ANSI

Sports sunglasses contain the resistant lens and nose cushion. The space sunglass must have an enough protection. The first sunglass was a pilot sunglass produced by American optical. Sunglass lenses are of different color and are made up of glass or plastic. The frames are made up of metal alloy or nylon. It is less expensive and it can be worn easily. The other names of sunglasses are shades, sun specs, Locs, dark glass etcThe most commonly used sunglasses are ray-ban and Oakley.