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The globe is getting warmer and warmer. Facing the stronger ultraviolet rays, what can you do to protect your body? Undoubtedly, the eyes is one of the most important parts of us, so if you decide to buy a pair of best sunglasses to wear when you go out, you may take a look at this article to get some common senses in wearing a sunglass.

First of all, remember that improper ways of wearing sunglasses may lead to eye diseases. In these dark environments, for example, in the cloudy weather or in a dark room, there is no need to wear sunglasses. Some people wear sunglasses everywhere regardless of settings and the strength of sunlight. They even wear sunglass in the dusk, in the evening, and while watching movies and television. This will inevitably increase the burden on the eyes for it must keep adjusting itself to fit for the situation, which will cause muscle tension and muscle fatigue, and finally lead to vision loss, and even severe dizziness and other symptoms.

As for infants and children, they’d better not be allowed to wear sunglasses, because their visual system is still under development.

Then, besides glass-lens sunglasses, lenses of other materials are not highly resistant, so users should always pay attention to the surface of sunglasses. If the abrasion of lenses is so severe that it affects the clarity of the lens, the lens should be replaced.

Finally, we should also pay attention to the color of the lens. If you want to keep your eyes away from infrared and ultraviolet radiation, the color of lenses should be sufficiently deep. Generally speaking, dark gray lenses are better, followed by dark brown and black. The lenses of blue and purple are the worst, because more UV rays can penetrate these two kinds of lenses. In summer, people generally choose blue, green or brown lenses; while in winter, yellow, brown or gray lenses are better because of the reflective snow. The more intense the light is, the more you should choose to wear dark sunglasses.

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http://www.visioncarehome.com/emphasis-for-you-to-get-your-rx-sunglasses.html