How is UV radiation bad for your eyes?

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  1. Dr. Mehmet Oz
     
    Dr. Mehmet Oz answered:
    UV radiation can cause oxidative stress, which damages vision by clouding our lens and burning through the delicate film and cells of our retina.

    Prime example: Portland, Oregon, gets a little more than half as much sunlight as Atlanta, and Atlanta eyes have more damage.

    Radiation has a big impact on your eyes by oxidizing the pigments in the retina and decreasing the antioxidants in the thin, yellowish film that protects it, meaning that these delicate cells are always at risk of being damaged through free radicals. That's why nutrition is so important in rebuilding these antioxidant stores over time, especially when you consider that sunlight damage to the eye is cumulative—particularly in conditions like macular degeneration, where the cells die from oxidative damage.
    More Related Answers from Dr. Mehmet Oz
    UV radiation can cause oxidative stress, which damages vision by clouding our lens and burning through the delicate film and cells of our retina. Prime example: Portland, Oregon, gets a little more than half as much sunlight as Atlanta, and Atlanta... More
  2. Univ. of Nev. School of Medicine, Family Medicine
     
    The cornea is the clear portion of your eye that covers the iris. The iris is the colored portion of your eye. If you spend a lot of time outdoors without eye protection, your cornea is exposed to UV light. This can cause a burn to your cornea called ultraviolet keratitis. Corneal burns can be painful and can cause blurry vision and, if severe, even loss of vision. Since your cornea acts as a protective barrier for your eyes, you should avoid or protect against UV light by wearing sunglasses and other protective eye gear when needed.
    The cornea is the clear portion of your eye that covers the iris. The iris is the colored portion of your eye. If you spend a lot of time outdoors without eye protection, your cornea is exposed to UV light. This can cause a burn to your cornea... More