ectopia lentis

(redirected from Lens dislocation)


 [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

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 ?
Airsoft pellets that strike the eye can cause scratches, painful pooling of blood inside the eye, lens dislocation or blindness.
The ophthalmic ultrasound system utilizes a high frequency transducer, probe, and software to diagnose the eye with time-sensitive conditions such as retinal detachment, vitreous hemorrhage, and lens dislocation.
Case 2 was that of a 13-year-old boy with acute lens dislocation. Ophthalmologists required urgent surgery He was diagnosed with MTHFR deficiency during early babyhood, and his Hcy level two months prior wasl81 [micro]mol [L.sup.-1] His pediatrician administered high doses of ASA (15 mg [kg.sup.-1]).
Patients were selected on the basis of following criteria: Tall stature and long bone overgrowth with lens dislocation, unilateral or bilateral along with cardiac abnormalities attending to outpatient department of ophthalmology and patients referred to the department of ophthalmology from other departments.
Morilla, "Surgical outcome of late in-the-bag intraocular lens dislocation treated with pars plana vitrectomy," Retina, vol.
In pseudoexfoliation syndrome, the lens zonules are more fragile and have diminished elasticity, and spontaneous intraocular lens dislocation may occur due to capsular fibrosis.
Concerning the ocular history the patient presented bilateral posterior lens dislocation in the first year of life.
Possible predisposing factors for late intraocular lens dislocation after routine cataract surgery.
Vrablik ME and associates reported the sensitivity and specificity of ultrasonography in Retinal Detachment to be ranging between 97%-100% and 83%-100% respectively.4 Furthermore, for lens dislocation, SHO Haghighi et al.1 reported the sensitivity and specificity of ultrasonography were 84.6% (95% Cl: 53.7-97.3) and 98.3% (95% Cl: 93.399.7), respectively.5
He had poor eyesight because of partial lens dislocation.
The most common anterior segment injuries include hyphema, lens dislocation, cataract, angle recession and iridodialysis2.
(30) All cases of unexplained lens dislocation should undergo prompt investigation as well as homocystinuria screening.