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congenital absence of the iris.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
Absence of the iris. Compare: irideremia.
[G. an- priv. + irid- + -ia]
Farlex Partner Medical Dictionary © Farlex 2012
aniridiaOphthalmology A congenital AD or AR condition characterized by a virtually complete absence of the iris, which may be accompanied by other ocular defects–eg, congenital cataracts, corneal dystrophy, foveal hypoplasia, and therapeutically refractory glaucoma Prognosis Poor
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
Absence of the iris.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
aniridiaAbsence of the iris of the eye. This may be CONGENITAL or, more commonly, the result of injury.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
Complete, or almost complete, absence of the iris of the eye. It can be acquired, due to trauma, or inherited as an autosomal dominant trait. The patient is photophobic and in congenital cases there is usually amblyopia and sometimes nystagmus. Contact lenses incorporating an artificial iris, or tinted spectacle lenses, help in this condition. See chromosome; irideremia; cosmetic contact lens.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann