cataract

cataract
A condition in which the lens of the eye becomes cloudy. Symptoms include blurred, cloudy, or double vision; sensitivity to light; and difficulty seeing at night. Without treatment, cataracts can cause blindness. There are many different types and causes of cataracts. They may occur in people of all ages, but are most common in the elderly.

English dictionary of cancer terms . 2015.

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Synonyms:
, , / , (from opacity of the crystalline lens)


Look at other dictionaries:

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  • cataract — [kat′ə rakt΄] n. [ME cataracte, floodgate (of heaven), cataract (of the eye) < L cataracta, a waterfall, portcullis < Gr katarhaktēs < katarhassein, to dash down < kata , down + rhassein, to strike or ? arassein, to smite] 1. a large… …   English World dictionary

  • Cataract — Cat a*ract, n. [L. cataracta, catarracles, a waterfall, Gr. ?, ?, fr. ? to break down; in the passive, to fall or rush down (of tumors) to burst; kata down + ? to break.] 1. A great fall of water over a precipice; a large waterfall. [1913… …   The Collaborative International Dictionary of English

  • cataract — index spate Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • cataract — (n.) early 15c., from L. cataracta waterfall, from Gk. katarhaktes waterfall, broken water; swooping, rushing down; portcullis, noun use of adjective from kata down (see CATA (Cf. cata )) + arhattein to strike hard. Its alternative sense in Latin …   Etymology dictionary

  • cataract — n *flood, deluge, inundation, torrent, spate …   New Dictionary of Synonyms

  • cataract — ► NOUN 1) a large waterfall. 2) a medical condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision. ORIGIN Latin cataracta waterfall, floodgate , also portcullis (sense 2 probably being a figurative use of… …   English terms dictionary

  • Cataract — For other uses, see Cataract (disambiguation). Cataract Classification and external resources Magnified view of cataract in human eye, seen on examination with a slit lamp using diffuse illumination …   Wikipedia

  • Cataract — A clouding of the lens of the eye. The normally clear aspirin sized lens of the eye starts to become cloudy. The result is much like smearing grease over the lens of a camera. It impairs normal vision. There are many causes of cataracts including …   Medical dictionary

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