Sunglasses: Brand Name UV Defense Made For Your Vision
Posted on 23. Mar, 2010 by designandfashion in Reviews
Everyone should protect their eyes from the harmful rays of the sun by wearing sunglasses. Wearing ones that block out the ultraviolet A and B rays plus HEV rays are the best ones that you can get for your eyes. You will be protecting your eyes from possible cataracts, and the skin around your eyes from possible skin cancer.
Shade from glasses, is not only meant to keep you from having your eyes half closed when you are enjoying the outdoors or when driving. Dark glasses are not available so you look good. The reason for glasses that give shade to ones’ eyes is protection.
Exposing unprotected eyes to excessive amounts of ultraviolet rays over a short amount of time can cause photokeratiis, or sunburn in the eyes. This can be painful, and give you the feeling of having sand in your eyes. This is usually only temporary and hardly ever causes permanent damage to the eyes. However, long term exposure to this can be more serious. Which is why people need to be made aware of why they need to wear glasses that shade the eyes.
Researchers have found that long term exposure to UVA rays can be the cause of damage to your retina or cataracts. Extended exposure to UVB rays can lead to skin cancer around the delicate eye area. Short term exposure to UVB can inflame the cornea of your eye which can cause temporary blindness that can last up to 48 hours.
It is proven that 80 percent of your exposure to the sun happens before age 18. Children generally spend more time outdoors than adults this is why it is important to protect your child’s eyes as well as your own. Look for glasses that will block out at least 99 percent of both UVA and UVB rays.
Plastic and glass lenses are effective at blocking out damaging rays. Look for labels that read UV absorption 400nm. This is the same as absorbing 100 percent of UV rays.
Reflected glare is light that comes back at you from water or a smooth surface. Polarized glasses will stop this glare from happening. They do not block UV rays. It is possible to get both polarized and UV blocking lenses together. This would be good for any outdoor fun and driving.
UV protection is not based on the color of the lens in your glasses. You can get a light amber lens and still have better protection than if you had a dark gray lens. The color of the lenses only matters for the protection from HEV rays. HEV stands for high-energy visible radiation. This will sometimes be called blue light.
{Ultraviolet light rays do have more energy than HEV rays, but HEV radiation will go deeper into the eyes and have damaging effects on your retinas. A reddish brown, bronze or copper lens is best for protection from these rays. The label on these glasses might say blue blocking. You can find glasses that will protect you from all of the harmful rays.Ultraviolet light is stronger than high-energy visible light, but the rays from the HEV light go deeper into the eye. This can cause retinal damage. Glasses that protect against this would be bronze, copper or reddish in color. The label on these might say blue blocking lenses. You can get all of the protection against UVA, UVB and HEV in one lens.
It is not hard to comprehend why everyone needs to have a pair of sport sunglassesthat will protect from the harmful rays of the sun. All people do not need to have Hugo Boss sunglasses because not all people drive or spend a lot of time outdoors. Everyone does need to protect their eyes though.
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