Sunglasses market is very confusing

Expert: low-quality sunglasses easily hurt eye
In order to reduce UV damage to the eyes, Ms. Song recently in jewelry store to buy a pair of oakley sunglasses cheap, did not expect to wear shortly after, the eyes will feel uncomfortable, go to the hospital to check that, sunglasses transmittance is insufficient to blame. Experts remind mixed sunglasses on the market today, if you blindly pursue cheap buy low-quality sunglasses, not only would not achieve the role of blocking ultraviolet rays, but may cause eye damage. Also, do not for a long time to wear sunglasses, or easy to make eye fatigue increased, decreased visual acuity, blurred vision, dizziness and other symptoms even appear.
Sunglasses market a bit chaotic
Summer, many people will buy a pair of sunglasses, especially for car owners, sunglasses are almost a necessity. However, you do not want to pick a line with heart sunglasses, nor is it an easy thing. Glasses shop few hundred dollars or a thousand dollars sunglasses, to some of the street becomes a small shop tens of dollars, the appearance looks the same.
In a jewelry store, the door hung a variety of sunglasses on display, many of which printed an international brand name. After asking that these sunglasses in price from ten dollars to two hundred dollars, asked about pricing basis, the clerk simply replied "frame material is different" or "put you know, the feeling of wearing is not the same. "
These printed with international brand name sunglasses mostly high imitation goods, these brands of sunglasses, genuine price is several thousand dollars, in whatever channels of purchase, are not low or even tens of dollars to several hundred dollars, those prices ridiculously cheap, basically fake. Imitation sunglasses are also graded, in addition to mimic the appearance of well-known brands, the quality of the merits is mainly reflected in the lenses, sunglasses usually add a layer of special coating, used to block ultraviolet rays, lens quality cheap oakleys sunglasses, UV-blocking ability , the transmittance decreased and small, the surface is also easy to wear.
About how to choose sunglasses, buy sunglasses, you can wear it to feel the sun shading effect, if you wear sunglasses and still feel the sun more dazzling, eye discomfort, even when you did not wear the same with squint to see things, Description The UV protection sunglasses ineffective.
Expert advice: Do not wear a long time
Although it cannot be conclusive in the price level or bad quality sunglasses, but ridiculously cheap sunglasses, it is certainly difficult to guarantee quality. In the purchase of glasses, or to go to the regular optical shop choose the regular manufacturers.
According to research, strong sunlight contains large amounts of ultraviolet and infrared, may damage the cornea of the eye, lens, and even eyes. Wearing a pair of sunglasses, you can block or absorb part of the light, reducing eye irritation. But the premise is: This is an acceptable quality sunglass. This is because, when the eye encounters light, the pupil becomes smaller; it can reduce the UV entering the eye. No anti-ultraviolet function can be put on the glasses, a serious decline in the lens transmittance, eye pupil becomes large, plus glasses without isolation ultraviolet function, equal to the eye without protection, despite the UV intrusion.
Even the quality of qualified sunglasses, also suggest that you do not wear a long time. Ordinary dark glasses, the eyes of the outside world, and usually the object will feel very different, very different eye observation contrast objects. Wear sunglasses, many people will feel better when you see things are not so clear when you wear sunglasses in order to see more clearly, people subconsciously dilated pupil will, over time, will increase eye fatigue will cause muscle tension, fatigue, vision loss, blurred vision, dizziness and even other symptoms.
Takes a long time to wear sunglasses personnel, such as pilots, etc., the best professional drivers to wear sunglasses for: special populations more stringent requirements on the sunglasses. In addition to the driver, myopia crowd of more than 425 degrees, the best choice for professional preparation of discount oakley sunglasses.