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- A cataract is a clouding of the lens in the eye that affects vision.
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| from http://www.youtube.com/watch?v=8pS8HsLyPcU and http://www.gifsoup.com/view2/1350529/lens-o.gif |
- Most cataracts are related to aging.
- Cataracts are very common in older people.
- A cataract can occur in either or both eyes. It cannot spread from one eye to the other.
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| photo from http://www.nei.nih.gov/health/cataract/cataract_facts.asp |
SOURCE: http://www.nei.nih.gov/health/cataract/cataract_facts.asp
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