Outdoor sunglasses shopping tips

Go out for fun, summer sun, came out people have blinded eyes, apart from the umbrellas, hats, visor, and cheap oakleys sunglasses against UV the best weapons.
Bright light will penetrate your eyes hurt, sunglasses can reduce severe sun damage to the eyes, blinding flash of light may cause headache, and sunglasses will 95 ~ 100 filter effects.
Most people on the sunglasses of choice remains to aesthetic considerations think sunglasses are fashionable jewelry and glasses shape as the first consideration when buying, even clothing stores will put a ton of sunglasses available for purchase to match outfits. Sunglasses are ornaments feature, but its protection is the most important. Because without proper UV, long run will cause injury to the eyes. UV lens should be absorbed, if not absorbed fully into the retina, retinal macular lesion would have, and if not absorbed fully into the lens and cause cloudy water crystals, and produce serious eye diseases such as cataracts. So, if you have a bad pair of sunglasses, in addition to no protection function, but hurts the eyes, it