Tuesday, July 06, 2010
ROCHESTER, Minn. — For shielding eyes from sunlight, not all sunglasses are created equal. In the July issue of Mayo Clinic Women's HealthSource, Amir Khan, M.D., Mayo Clinic ophthalmologist, discusses some considerations for purchasing sunglasses to help ensure good eye health.
Ultraviolet (UV) light rays from the sun not only can damage the skin, they can also harm the eyes. Long-term exposure to UV light increases the risk of cataracts, a clouding of the eye's lens. Some experts believe UV rays increase the risk of macular degeneration, a chronic disease that affects the central vision.
Sunglasses are an easy and effective way to protect against UV rays. "It's best to wear sunglasses any time you're outside and need sun protection," says Dr. Khan. He offers tips for purchasing sunglasses:
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