Causes of Cataracts

Everyone needs to keep their eyes protected from unsafe sunrays by using fashion sunglasses. The glasses that are advised by opticians are ones that protect against UVB, HEV and UVA rays. You will be saving yourself from getting cancer around your eyes and cataracts.

Glasses that shade your eyes from the suns' rays are not only available so that you do not squint while driving or walking outside. They do not make them only for style or fashion. The main purpose of glasses that block out the light of the sun is for 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.

There is proof that before the age of eighteen, children are exposed to eighty percent of the sun they will experience in a lifetime. This is because kids spend more of their time outdoors than they will when they are adults. It is extremely important to make sure your child has protection for their eyes. Try to find glasses that will give ninety nine percent protection from both UVB and UVA 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 sport sunglasses. It will not matter if your lenses are dark or a light colored brown. Color only matters for blocking out HEV radiation. HEV is also known as blue light or high-energy visible radiation.

High-energy visible light does have lower energy than ultraviolet light but the rays penetrate deeply into the eye and can cause retinal damage. For glasses that protect against damage from HEV light, a bronze, copper or reddish brown color is best. These would be called blue blocking lenses. It is possible to get all of the protection you need in one lens.

It is not hard to comprehend why everyone needs to have a pair of fashion sunglasses that will protect from the harmful rays of the sun. All people do not need to have polarized glasses because not all people drive or spend a lot of time outdoors. Everyone does need to protect their eyes though.

Bookmark It