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originally posted by: and14263
This is the most stupid thing I have ever read.
Go and educate yourself about eyes.
Both UVA and UVB light, whether artificial or natural, have short and long term negative effects on eye health and vision. The cornea and lens, which focus the light we see, absorb UVB light. UVA light passes through to the back part of the eye, to the macula, and can damage central vision.
Some people are even more at risk for eye damage from UV light than others. Those include individuals with certain eye diseases, some individuals who have had cataract surgery, and those who take photosensitizing drugs. Some studies show people with light irises are also at risk for increased damage.
Even without special circumstances, limiting exposure to UV light is a good idea for long-term eye health. UV exposure damages eyes over time. So every time you’re outside without adequate protection, you accumulate damage and increase risk.
A few eye conditions — pterygium, pinguecula and climatic droplet keratopathy — due directly to UV exposure are not well known but worth noting. Each presents long-term issues and are generally associated with individuals living in areas with significant UV exposure or who are outdoors a great deal of the time.
More common long-term eye problems, also with links to a lifetime of unprotected exposure to UV rays, include macular degeneration, cataracts and skin cancer.
Macular Degeneration (MD)
MD occurs when part of the retina is damaged. Central vision is lost as is the ability to see fine details. Peripheral (side) vision is usually normal with MD. Unprotected exposure to UV rays increases the risk of developing MD.
Cataracts
UV rays, especially UVB rays, can also cause cataracts. Cataracts, a clouding of the eye’s lens, is the leading cause of blindness in the world.