Sunglasses have become the essential item for people who pursue the fashion, they would be crazy to buy a wide variety of sunglasses. What should we pay attention to for better protection of the eyes when buying optical eyeglasses?

Do not buy acrylic lenses, which are easy to be heated then cause the deformation. The best choices are glass or a resin material. The glasses should be on the nose and ears evenly, if you feel lean to one side, you should adjust immediately. In addition, the eyelashes should not touch the lenses that is one of the standards.

Do not select too small lenses, for thus the effect of the light barrier would be inferior a lot. Observe the lens to know if there are scratches, impurities, bubbles, stripes. Check the package, the standard optical glasses should have the informations about name, color, diameter, the rate of quality, the name of the producter and the brand on it. The sunglasses with anti-UVA, UVB, and CE marks on the lenses or hangtag can block certain UV.

Lens should be smooth and a higher degree of penetration. Sunglasses lens materials include glass and resin, while the best one should employ polarized lens. The sunglasses color should be selected in addition according to your skin color, face shape, dressing, you must also choose according to the places you are going.

In general, black, brown, gray lens has a good effect of filtering light. Among them, gray lens can absorb any colour with balance. When wearing them, the scene you see only darkens, instead of having obvious chromatism. Brown lens is able to filter out a large number of blue lights and can improve visual contrast and clarity, it is best to wear under the serious air pollution condition or much fog condition.

Sports sunglasses should be put on under the situation like playing at the beach, a snowfield with strong reflective light and intensive sunshine. They mostly use the saturation colors of bright color, which can absorb or reflect more visible light.

In addition to reducing the stimulation of strong light to make your eyes comfortabe, the main aim of wearing men sunglasses is to reduce the harm from ultraviolet radiation. The lens color and whether it can resist the UV is different, even if the lens color is deep, it may not resist UV effectively. So choose the glasses with UV signs on. Normally, the fingers of UV is between 96% to 98%.