mydriasis

mydriasis
n.
widening of the pupil, which occurs normally in dim light. The commonest cause of prolonged mydriasis is drug therapy (see mydriatic) or injury to the eye.
See also: cycloplegia
Compare: miosis

The new mediacal dictionary. 2014.

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  • Mydriasis — My*dri a*sis, n. [L., fr. Gr. ?.] (Physiol. & Med.) A long continued or excessive dilatation of the pupil of the eye. [1913 Webster] …   The Collaborative International Dictionary of English

  • Mydriăsis — (gr.), krankhafte Erweiterung der Pupille …   Pierer's Universal-Lexikon

  • Mydriăsis — (griech.), Pupillenerweiterung …   Meyers Großes Konversations-Lexikon

  • Mydriasis — Mydriăsis, Mydriatĭka (grch.), s. Pupille …   Kleines Konversations-Lexikon

  • mydriasis — [mi drī′ə sis, mīdrī′ə sis] n. [LL < Gr] prolonged or excessive dilatation of the pupil of the eye, as the result of disease or the administration of a drug …   English World dictionary

  • Mydriasis — Dilated pupil redirects here. This term also arises in eye examinations. Mydriasis Classification and external resources Pupil dilated for examination by optometrist. ICD 10 …   Wikipedia

  • Mydriasis — Klassifikation nach ICD 10 H57.0 Pupillenfunktionsstörungen …   Deutsch Wikipedia

  • mydriasis — /mi druy euh sis, muy /, n. Med. excessive dilatation of the pupil of the eye, as the result of disease, drugs, or the like. Cf. miosis. [1650 60; < L mydriasis < Gk mydríasis] * * * …   Universalium

  • mydriasis — my•dri•a•sis [[t]mɪˈdraɪ ə sɪs, maɪ [/t]] n. med oph excessive dilatation of the pupil of the eye, as the result of disease, drugs, or the like Compare miosis • Etymology: 1650–60; < L mydriāsis < Gk mydríāsis, appar. der. ofmýdroshot mass… …   From formal English to slang

  • Mydriasis — Dilation of the pupils induced by eyedrops. The opposite of miosis. * * * Dilation of the pupil. [G.] alternating m. m. alternately affecting each eye. amaurotic m. a moderate widening of both pupils resulting from impaired visual input from one… …   Medical dictionary

  • Mydriasis — Pupillenerweiterung * * * Mydriasis   [griechisch »Pupillenkrankheit«] die, /...ses, Mydriase, Erweiterung der Pupille; tritt als natürliche Reaktion bei Dunkeladaptation und Blick in die Ferne auf; krankhaft und anhaltend durch eine… …   Universal-Lexikon

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