ectopia lentis

(redirected from Lens luxations)

ectopia

 [ek-to´pe-ah] (L.)
malposition, especially if congenital.
ectopia cor´dis congenital displacement of the heart outside the thoracic cavity.
ectopia len´tis displacement of the crystalline lens of the eye.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ec·to·pi·a len·'tis

[MIM*225100]
displacement of the lens of the eye.
Synonym(s): dislocation of lens
Farlex Partner Medical Dictionary © Farlex 2012

ec·to·pi·a len·tis

(ek-tō'pē-ă len'tis)
Displacement of the lens of the eye.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Ectopia lentis

Dislocation of the lens of the eye. It is one of the most important single indicators in diagnosing Marfan syndrome.
Mentioned in: Marfan Syndrome
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

luxation of the lens

Pathological and complete dislocation of the lens relative to the pupil. If the luxation is incomplete it is called subluxation of the lens (or dislocation or ectopia lentis). Subluxation is one of the causes of monocular diplopia. If the luxation is complete the eye becomes markedly hyperopic and is unable to accommodate. Luxation occurs in contusion of the globe, in many ocular (e.g. buphthalmos) and other diseases (e.g. syphilis) or it can be inherited (e.g. the bilateral, symmetrical, superior subluxation commonly found in Marfan's syndrome or homocystinuria). It is sometimes associated with ectopic pupils and keratoconus. Unless there are complications (e.g. secondary glaucoma) or monocular diplopia the lens is left in place and management is optical. (Fig. L21) See corectopia; iridodonesis; pupillary block.
Fig. L21 Dislocation of the lens (usually in the vitreous humour)enlarge picture
Fig. L21 Dislocation of the lens (usually in the vitreous humour)
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

ec·to·pi·a len·tis

(ek-tō'pē-ă len'tis) [MIM*225100]
Displacement of the lens of the eye.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Lens luxations (dislocations) generally occur in tandem with chronic uveitis.
The most common causes of secondary glaucoma are inflammation, lens luxation, tumors and trauma.
treatment may be necessary if the cat is unresponsive to medical treatment or if the glaucoma is caused by lens luxation, a tumor or trauma.