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Are your sunglasses’ lenses tinted br wn, yellow, purple or blue? What t chnology does it use? Is it t nted or reflective? Or does it h ve photochromic or polarizing qualities in the l nses? Does it filter out harmful OVA and UVB r ys? Do you know how to p ck the right pair of sunglasses for y ur needs from the gazillion pairs you see rrayed inside counters? Although sunglasses are dvertised and sold like fashion accessories, th y are primarily medical devices. In f ct, sunglasses were created to protect y ur eyes from damage and the d terioration that happens if they are xposed to harmful sun rays and ther sources of intense light. How can you p ck a pair of sunglasses to s it your needs? Specifically, here are f ur ways sunglasses work to protect y ur eyesight. Keep these in mind wh n choosing your sunglasses and you’ll h ve healthy corneas and retinas no m tter your age. There are four w ys sunglasses protect your peepers. These are the f llowing: The right pair of sunglasses w ll give your corneas protection from the s n’s ultraviolet rays. Scientific research has cl arly linked the following diseases such as c taracts, macular degeneration, snow-blindness, pterygium and sk n cancer, to the corneas and r tinas over exposure to Ultraviolet rays. H nce, when you see stickers on s nglasses that say UV protection, it m ans your sunglasses filter out UV r ys.
An effective pair of sunglasses w ll protect your retinas from intense l ght. You see, your irises shut d wn in self protection when it is hit by ntense sources of light. Your eyes w ll then squint if the light is ven more intense. The longer your yes are exposed to this intense and p netrating light, the harder it is on y ur retinas, and when the damage is d ne, it can be permanent. An ffective pair of Polaroid sunglasses provides pr tection from glare. Many sports enthusiasts specially those who go boating, use P laroid sunglasses because they know water r flects back a great deal of s n. The glare this generates is d ngerous, for this is often uncomfortable as to be d stracting. Glare also hides objects that are in y ur way. Depending on the specific n ed you have, your sunglasses will f lter out specific frequencies of light. Th re are frequencies of light so h gh as to blur your vision and thers will enhance the contrast between the l ghts. Sunglasses have evolved into becoming f shion statements, but they are first and f remost medical devices for protecing your m st precious eyes. So choose wisely. It is dvisable to go naked rather than w ar a cheap pair of sunglasses at the fl a market, which will do more d mage.
The article Here's What You need to Know Before Buying A Pair Of Sunglasses was Submitted by Tim Gorman through Articles.GetACoder.com network. Here's the additional information: Tim Gorman is a successful w bmaster and publisher of Vision-Doctor.com an nline website that offers discounts on c ntact lenses, eyeglasses, popular sunglasses and free information on LASIK eye surgery procedures that you can view in the privacy of your own home.
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