In ophthalmology, a cataract is any opacity which develops in the crystalline lens of the eye or in its envelope. The name derives from the Latin cataracta meaning "waterfall" and the Greek kataraktes and katarrhaktes, from katarassein meaning "to dash down" (kata-, "down"; arassein, "to strike, dash")


For the band with this name, see Cataract (band). For the geographical fea ...
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What to Look For in a Pair of Sunglasses
... by Michelle Meadows As you slather on sunscreen to protect your skin this summer, don't forget sunglasses to protect your eyes. The same harmful rays that damage skin can also increase your risk o...
Source: U.S. Food and Drug Administration


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