Sun glasses lens made of plastic or glass

Sunglasses to protect their eyes from the sun. They are used to prevent the eyes from damage or discomfort. In outdoor activities of people find Sunglasses very comfortable, because they protect your eyes from the sun. Sunglasses can protect your eyes from ultraviolet irradiation, resulting in some ocular infection. They can provide a more comfortable and clarity, can protect his eyes against the glare. For patients who suffer from eye infections, such as disposable sunglasses sunglasses have different species. A polarized sunglasses, reduce the glare of the eyes in some angle. They provide protection, prevent excessive exposure to light.
People wear sunglasses, to avoid contact with the eyes. Frame holds the lens. Frame sunglasses is generally made of plastic, metal and nonmetal materials. Nylon frame is easy to bend, light weight. They are easy to bend to the original shape, but not broken. Metal frame than nylon is rigid, they are easy to be damaged. A hook nose bridge should have rubber or plastic material, which contributes to the glass holding. Resting hook is curved, they are used to wrap around the ears, but some of the stationary hook is straight. The frame is used to keep the glass in many ways. There are different types of frame, such as a frame, the frame, frameless. Full frame lens cover all around. A box cover only half of the lens, such as a lens to the top and sides of the frame. Rimless lenses are those who do not have a lens frame. In these frames, the ear stems and directly connected to the lens.
Sunglasses with interchangeable lens in low light eye protection. Sun glasses lens made of plastic or glass. Glass lens than plastic, but they have the best optical clarity and they scratch, scratch very easily, and plastic lens than glass lenses, light. Plastic lens has low transparency, ultraviolet and infrared radiation. A polarized lens plastic cloth, they help caused by light to reduce glare.