Buy sunglasses should pay attention

Have you thought about these words feel very contrasting color, actually can find cheap ray bans sunglasses! The hibernating Sun finally woke up, the terrible the ultraviolet with intimate contact with white skin wishful. Away from its lethality, but also show the fashion personality self, sunglasses are undoubtedly the first choice! Well, in this increasingly scorching sun of the season, you will choose a perhaps representative of fashion, and may represent the practical, perhaps only represent the personality of sun glasses?
Buy sunglasses should note:
The human body has the instinct of self-protection, the eyes there is a very strong light, the pupil will naturally become smaller, so less energy ultraviolet light entering the eye, once put on glasses, UV protection function will dilated pupils, plus the glasses isolation UV, when the eye equal to the door wide open, despite the UV into can imagine the damage to the eyes.
Sunglasses can block UV, because the lenses add a layer of special coating, low-quality sunglasses will not only fail to block ultraviolet rays, also a serious decline in the lens transmittance, and the pupil larger, ultraviolet light but will be a substantial injection, so the eye loss. In addition, the poor quality lenses also make nausea, forgetfulness, insomnia and other symptoms of visual fatigue.
Sunglass lens color to light gray, brown or smoke color is superior, followed by green, amber, and blue, red only as the sun or snow.
The car is best to use fake ray bans polarized sunglasses, because they are able to decrease glare.
If you wear sunglasses, others can very clearly see your eyes, and then your lens color is too light.
When the sun goes down, it is best to remove the sunglasses; otherwise, we are in a low light vision will be affected.
To the regular optical shop should choose the regular manufacturers have sunglasses with UV protection.
Attention to the surface of the lens choice.
Face than the lanky for round frame sunglasses.
Medical experts recommend: When buying ray ban outlet sunglasses, you can clear depending on the material to determine. Want to buy high-quality sunglasses, look for quality sunglasses brand.