Cataracts are an opacity or clouding of the normally crystalline lens of the eye caused by the natural aging process, metabolic changes, injury, various forms of radiation, toxic chemicals, and certain drugs. As the leading cause of vision loss among adults age sixty or older, cataracts impair vision making everyday activities increasingly difficult.
In simple terms, a cataract is usually part of the normal aging process that changes the natural, clear lens of the eye into a cloudy, opaque structure that inhibits or diminishes the passage of light to the retina. The condition can be compared to a window that is frosted or “fogged” with steam.
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