Keratoconus
Cone-shaped cornea with the apex of the cone being forward. Also called conical cornea.
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A conical protrusion of the cornea caused by thinning of the stroma; usually bilateral. SEE ALSO: Fleischer ring, Munson sign. SYN: conical cornea. [kerato- + G. konos, cone]
- circumscribed posterior k. congenital corneal defect characterized by a craterlike defect on the posterior corneal surface.

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ker·a·to·co·nus .ker-ət-ō-'kō-nəs n cone-shaped protrusion of the cornea

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n.
conical cornea: an abnormal condition of the eye in which the cornea, instead of having a regular curvature, comes to a rounded apex towards its centre. The 'cone' tends to become sharper over a period of years.

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ker·a·to·co·nus (ker″ə-to-koґnəs) [kerato- + conus] a noninflammatory, usually bilateral protrusion of the cornea, the apex being displaced downward and nasally. It occurs most commonly in females at about puberty. The cause is unknown, but hereditary factors may play a role. Called also conical cornea.

Medical dictionary. 2011.

Look at other dictionaries:

  • Keratoconus — Classification and external resources The conical cornea that is characteristic of keratoconus ICD 10 H …   Wikipedia

  • keratoconus — [ker΄ə tō΄kō′nəs] n. an abnormal conical bulging of a cornea causing impaired vision or blindness: thought to be an inherited disorder …   English World dictionary

  • Keratoconus — Klassifikation nach ICD 10 H18.6 Keratokonus Z94.7 Zustand nach Keratoplastik …   Deutsch Wikipedia

  • keratoconus — /ker euh toh koh neuhs/, n., pl. keratoconi / nuy, nee/. Pathol. a degenerative condition characterized by conical protrusion of the cornea and irregular astigmatism. [1855 60; KERATO + L conus CONE] * * * …   Universalium

  • keratoconus — noun A degenerative non inflammatory disorder of the eye in which structural changes within the cornea cause it to thin and change to a more conical shape than its normal even curve …   Wiktionary

  • keratoconus — ker·a·to·conus …   English syllables

  • keratoconus — n. conical cornea: an abnormal condition of the eye in which the cornea, instead of having a regular curvature, comes to a rounded apex towards its centre. The ‘cone’ tends to become sharper over a period of years …   The new mediacal dictionary

  • keratoconus — noun abnormal cone shaped protrusion of the cornea of the eye; can be treated by epikeratophakia • Hypernyms: ↑astigmatism, ↑astigmia * * * ¦kerəd.ō¦kōnəs noun ( es) Etymology: New Latin, from …   Useful english dictionary

  • Кератоконус (Keratoconus) — роговица глаза, имеющая коническую форму: аномальное состояние глаза, при котором роговица, вместо правильного искривления, приобретает округлый выступ в центре. Угол в вершине этого конуса с годами начинает все сильнее заостряться. Источник:… …   Медицинские термины

  • conical cornea — keratoconus …   Medical dictionary

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