A good way of choose and buy sunglasses science

Burning hot summer is coming, many friends early is saddled a pair can block out the sun, and concave shape of sunglasses. Glasses sunglasses factory remind everybody, however, your sunglasses really can prevent harmful rays in sunlight damage to the eyes? Below, along with glasses sunglasses factory to learn how to choose and buy sunglasses. First, the first observation lenses have scratches, impurity, air bubble, stripes, lens surface is smooth, and pay attention to check the sunglasses outer packing. Regular sunglasses should be marked with name, color, diameter, quality levels, production factory name and trademark, must choose UV resistant lenses are marked, can effectively prevent ultraviolet ray, usually sunglasses UV index is between 96% ~ 98%. Second, the choose and buy sunglasses in addition to match your color of skin, face, dress, important role is to protect our eyes. In recent years, because can effectively reduce glare and effectively eliminate and filter out the scattering light beam, to reduce glare, resist fatigue, prevent ultraviolet ray, and other functions, polarized sunglasses are more and more attention and praise highly, especially suitable for driving, fishing, tourism and everyday wear.
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