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A cataract is a clouding of the lens in the eye that affects vision. Most cataracts are related to aging. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surgery.

A scene as it might be viewed by a person with Cataract:
Cataract
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This page was last modified in December 2008

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NEI Website Header Description: Confocal image of rat RPE layer two weeks after laser. A well-defined neovascular membrane labeled with Isolectin Ib4 (red) is detected below proliferating RPE cells (Phalloidin in green). New vessels are growing toward the subretinal space.