miosis

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miosis

 [mi-o´sis]
excessive contraction of the pupil.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

mi·o·sis

(mī-ō'sis), Do not confuse this word with meiosis.
1. Contraction of the pupil.
2. Incorrect alternative spelling for meiosis.
[G. meiōsis, a lessening]
Farlex Partner Medical Dictionary © Farlex 2012

miosis

also

myosis

(mī-ō′sĭs)
n. pl. mio·ses (-sēz)
Constriction of the pupil of the eye, resulting from a normal response to an increase in light or caused by certain drugs or pathological conditions.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

miosis

Contraction of the pupil.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

miosis

Contraction of the pupil. Cf Mydriasis.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

mi·o·sis

(mī-ō'sis)
1. Contraction of the pupil.
2. Incorrect alternative spelling for meiosis.
[G. meiōsis, a lessening]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

miosis

Constriction of the pupil.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

miosis

Contraction of the pupil or condition in which the pupil is very small (2 mm or less in diameter). It can be brought about by a spasm of the sphincter muscle or by the effect of a miotic drug (e.g. eserine, neostigmine, pilocarpine), or in certain spinal diseases or any stimulation of the parasympathetic supply to the eye. Miosis occurs naturally when doing close work or when stimulated by light. Note: also spelt myosis. See corneal reflex; pupil light reflex; baring of the blind spot; Horner's syndrome.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

mi·o·sis

(mī-ō'sis)
Contraction of the pupil.
[G. meiōsis, a lessening]
Medical Dictionary for the Dental Professions © Farlex 2012