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Human instinct of self-protection, eyes when it encounters a strong light, the pupil will naturally become smaller, incoming ultraviolet radiation reduces the energy of the eye, and once they wear anti-UV spectacles, dilated pupils, plus the glasses did not isolate the effects of ultraviolet radiation, eyes open and let UV entering, damage to the eyes.
Sunglasses can block UV rays, is added a special coating on the lens, and poor-quality sunglasses will not only fail to block UV rays, lens transmittance decrease and the pupil gets bigger, ultraviolet instead of a large number of injections, which damage the eyes. In addition, poor-quality Fake oakleys frogskins sunglasses cheap for sale lenses cause eye fatigue symptoms such as nausea, forgetfulness, insomnia.
Sun lens color to light gray, Tan or light smoked high, followed by green, amber, blue, red, used only as a Sun or snow.
Polarized sunglasses are best used by car, because they can reduce the glare of the bright lights.
If you wear Sun glasses, others can clearly see your eyes, and then your lens is too light.
When the sun goes, it is best to remove sunglasses, or weak in light of our vision are affected.
Select regular factory production to normal glasses shops with anti-UV sunglasses.
Mind when selecting a lens surface.
People with elongated faces fit round frame sunglasses.
Medical experts recommend that when purchasing sunglasses, you can to see if it is clear to see. Buy quality sunglasses, optical Professional only to be able to do is to shop, shop regular Cheap Oakleys Radar Sunglasses Discount glasses sunglasses.