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Teach You How to Identify Sunglasses

First, sunglasses with myopia: Compared with normal vision, myopia of those choices will be much smaller, but still there are several ways you can choose: A, can be added in the original with a pair of glasses with a clip of the lens, commonly known as set mirrors, their prices vary by shop, roughly 40-75 RMB. This set of mirrors into the interior in person, may reveal the lens up to use more convenient. B, myopic refraction below 600 degrees, select color myopic lens, and then matched with a pair of frames on the line, the equivalent of matched pair of glasses. C, plus film processing, plus the original lens on a film that became colored glasses, plus film costs about 20-30 dollars. People who wear contact lenses do not wear glasses with the same people to buy sunglasses.

Second, Sunglasses lens colors (in brown and purple as well): Dark green lenses: absorb heat, bring cool feeling, but a lower light transmission and clarity, suitable for sun and wear, but please not wear when driving. Grey lenses: the lens is more comprehensive, even after wearing you still can clearly distinguish between colors. Brown lenses: smooth and shining surface can block the reflected light; wearing glasses can see the subtle part is ideal for the driver. Blue Lens: Blue is the most popular sunglasses, blue sea and sky can effectively filter out the reflected light blue. Professor of ophthalmology at the hospital reminded that sunglasses are mainly used to protect eyes from UV, generally brown and lavender are better. Typically, such lenses can remove a lot of Blue-ray, can improve the visual contrast and clarity, or fog in the air pollution case to wear better. Some people like to wear sunglasses with very dark in color, in fact, not the more the better, the color of sunglasses too easily induced glaucoma, intraocular pressure caused by glaucoma patients. The sunglasses were too dark is equivalent to stay inside the dark room, wearing a long time will affect the vision. High myopia who had better not to wear sunglasses, children not wear sunglasses usually, because the eyes of a child in need of external stimuli, wearing sunglasses may affect the development of the eye.

Third, sunglasses Caution: Improper wearing sunglasses susceptible to diseases of the eye, cloudy, and there is no need to wear sunglasses indoors. Some people regardless of settings, regardless of sunlight intensity, even in the dusk, evening, and at the movies, television, also wearing sunglasses, which will inevitably increase the burden of adjusting the eye, causing eye muscle tension and fatigue, vision loss, depending on the blurring, severe dizziness, not a long time as other symptoms. Imperfect development of the visual system of infants and children should not wear sunglasses.

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