opsoclonus


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Related to opsoclonus: Ocular flutter

opsoclonus

 [op″so-klo´nus]
involuntary, nonrhythmic horizontal and vertical oscillations of the eyes, seen in certain disorders of the brainstem or cerebellum.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

op·so·clo·nus

(op'sō-klō'nŭs),
Rapid, irregular, nonrhythmic movements of the eye in horizontal and vertical directions.
[G. ōps, ōpos, eye, + klonos, confused motion]
Farlex Partner Medical Dictionary © Farlex 2012

opsoclonus

Neurology Rapid, irregular movements of eyes in all directions. See Paraneoplastic opsoclonus.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

op·so·clo·nus

(ŏp-sŏk'lō-nŭs)
Repetitive irregular multidirectional ocular movement associated with cerebellar or brainstem disorders.
[G. ōps, ōpos, eye, + klonos, confused motion]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

opsoclonus

A rare ophthalmic disorder featuring involuntary jerky (saccadic) eye movements in random directions. Opsoclonus should not be confused with NYSTAGMUS in which the movements are periodic and uniform. The disorder most commonly affects infants with neuroblastoma. In adults it may be related to other malignancies or to neurological infections. It is often associated with myoclonus and ataxia.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

opsoclonus 

Involuntary, chaotic movements of both eyes in horizontal and vertical directions. It may be a sign of cerebellar disease. See ocular flutter; ocular myoclonus.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
References in periodicals archive ?
On April 24th, 2013, Baby Jonathan "Tell" was diagnosed with Opsoclonus Myoclonus Ataxia Syndrome (OMS) at the young age of 20 months old.
Opsoclonus, characterized by rapid, multidirectional saccadic eye movements, is a paraneoplastic syndrome that is associated with neuroblastoma but not necessarily orbital involvement.
In contrast, a specialist referral might be appropriate for the child with more severe gastroesophageal reflux, opsoclonus (rapid and irregular eye movements), or one of the psychiatric disorders with manifestations that can mimic epileptic seizures.
De la misma manera, debe tenerse en cuenta el opsoclonus y el nistagmo vertical inferior, asi como la valoracion de la musculatura cervical en busqueda de signos de torticolis.
Acthar Gel is an injectable drug that is approved for the treatment of exacerbations associated with multiple sclerosis, infantile spasms, opsoclonus myoclonus syndrome, and nephrotic syndrome.
In addition to presenting with a palpable neck mass, patients may present with feeding difficulties, airway symptoms, or opsomyoclonus (opsoclonus, myoclonus, and cerebellar ataxia), which is thought to be a paraneoplastic syndrome.
None of the patients had myoclonus or opsoclonus. Cerebellar symptoms lasted between 7 and 20 days, resolving spontaneously in all patients.
Jordan was born with Down syndrome and opsoclonus. His mom, MaryBeth, retired early to stay at home and provide special instruction.