Ocular neuromyotonia: a case report

Ocular neuromyotonia is a rare clinical entity, which is characterized by spontaneous spasm of ocular muscles resulting in paroxysmal diplopia and strabismus. Inappropriate discharges from ocular motor neurons or axons with unstable cell membranes may cause the sustained contraction of their respect...

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Bibliographic Details
Published in:Clinical neurology and neurosurgery 2003-04, Vol.105 (2), p.140-142
Main Authors: Yürüten, Betigül, İlhan, Süleyman
Format: Article
Language:English
Subjects:
Adult
Anticonvulsants - therapeutic use
Biological and medical sciences
Carbamazepine - therapeutic use
Diplopia - drug therapy
Diplopia - etiology
Diplopia - pathology
Diseases of striated muscles. Neuromuscular diseases
Female
Humans
Isaacs Syndrome - complications
Isaacs Syndrome - drug therapy
Isaacs Syndrome - pathology
Medical imaging
Medical research
Medical sciences
Neurology
Neuromyotonia
Neurons
Ocular
Oculomotor Nerve Diseases - complications
Oculomotor Nerve Diseases - drug therapy
Oculomotor Nerve Diseases - pathology
Radiation therapy
Thyroid diseases
Tropical medicine
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Summary:Ocular neuromyotonia is a rare clinical entity, which is characterized by spontaneous spasm of ocular muscles resulting in paroxysmal diplopia and strabismus. Inappropriate discharges from ocular motor neurons or axons with unstable cell membranes may cause the sustained contraction of their respective ocular muscles. In most cases, ocular neuromyotonia resulted from radiation therapy to the parasellar and sellar regions or compressive lesions on ocular motor nerves. Among 30 patients reported in the literatür only six patients were accepted as idiopathic. Here, we reported a patient with third nerve myotonia representing with spells of diplopia. No lesion was found and she was accepted as idiopathic ocular neuromyotonia.
ISSN:0303-8467
1872-6968
DOI:10.1016/S0303-8467(02)00138-5