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Sunglasses feature selection, different consumers, according to different preferences and uses to choose sunglasses, but the most fundamental is to protect the wearer from safety and vision does not damage the basic principles of departure. Reducing light stimulation, visual clarity without distortion, anti-UV, no distortion of color recognition, accurate identification traffic signals, should be the basic functions of sunglasses.

Should not just focus on style, ignoring the intrinsic quality. Protection - mainly to prevent burns eyes were intense sunlight, but mainly UV blocking UV rays to protect the eyes is not, but the premise is this pair of sunglasses with UV blocking lenses must function. That is indicated on the mirror or tag anti-UV400, 100% anti-UV, UVA, UVB, and CE mark, etc. to ensure that sunglasses block certain ultraviolet fully play the role of eye protection.

In addition, contact lens wearers, wearing sunglasses can also contact lenses to prevent or reduce water evaporation, keeping contact lenses optical performance. Decorative purposes - sunglasses styles and colors to become the highlight of the summer, with its emphasis effect, making the sunglasses become a fashion in the summer landscape