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Sunglasses purchase
Feb 24, 2017

1, the human body has the instinct of self-protection, eyes when strong light, the pupil will become smaller, making of ultraviolet energy that enters the eye, once you wear glasses without UV protection, dilated pupils, plus the glasses did not isolate ultraviolet role, eyes wide open and let UV entering, damage to the eyes.

2, sunglasses can block UV rays, because of added a special coating on the lenses, poor-quality sunglasses will not block UV rays, lens transmittance decrease and make eyes bigger, UV rays instead of large injections, eye damage. In addition, the inferior lenses also make nausea, amnesia, insomnia and other symptoms of eye fatigue.

3, Sun lens color to light gray, Tan or light smoke, to superior, followed by green, blue, amber, and Red is only used as a Sun or snow.

4, by car it is best to use Polarized Sunglasses, because they can reduce harsh glare.

After 5, if you wear Sun glasses, others can clearly see your eyes, then your lens is too light.

6 and when the sun goes down, it is best to remove sunglasses, otherwise we in the weak light vision will be affected.

7, to a regular store select the regular manufacturers of sunglasses with UV protection.

8, when attention to the lens surface.

9, when buying sunglasses, you can see if it is clear to see. Buy quality sunglasses, optical Professional only thing to do is to store, regular stores to buy sunglasses.

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