An unusual chiasmal visual defect in a patient with neuromyelitis optica: case report.

An unusual chiasmal visual defect in a patient with neuromyelitis optica: case report. Research Abstract Details 

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An unusual chiasmal visual defect in a patient with neuromyelitis optica: case report. Abstract Text:

Roberta Martins da Silva Costa,Antonio Carlos Santos,Laudo Silva Costa,Roberta Martins da Silva Costa,Antonio Carlos Santos,Laudo Silva Costa,

PURPOSE: To report the unusual visual field finding due to a chiasmal neuritis in a 33-year-old female with the diagnosis of optic neuromyelitis optica (Devic's syndrome). METHODS: We report a case of a 33 years old female with limb paraesthesias, weakness in the legs, bowel and bladder dysfunction that was referred to the "Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo" in October 1995. Six years and four months later she had an acute visual involvement. Ophthalmologic examination, laboratory studies, magnetic resonance imaging (MRI) and a 24-2 threshold visual field in the Humphrey field analyzer were performed. RESULTS: The MRI scan showed enlargement and cavitation on the spinal cord and chiasmal involvement (thickening of the chiasm with contrast enhancement) and no demyelinating lesions in the brain, brainstem, or cerebellum. The central 24-degree threshold field examination showed an inferior visual field defect bitemporally, disclosing a chiasmal involvement. CONCLUSION: Chiasmal involvement may occur in neuromyelitis optica, probably due to a plaque within the chiasm. The authors call attention to the importance of visual field examination with particular regard to quantifying the visual impairment and follow-up of these patients.

An unusual chiasmal visual defect in a patient with neuromyelitis optica: case report. Publishing Authors By Initials

RM Costa,AC Santos,LS Costa,RM Costa,AC Santos,LS Costa,

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MEDLINE DATE: 2007 Jan-Feb

An unusual chiasmal visual defect in a patient with neuromyelitis optica: case report. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Arquivos brasileiros de oftalmologia

VOLUME: 70

Page Numbers: 153-5

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ISSN: 0004-2749

DAY: 16

MONTH: 05

YEAR: 2007

An unusual chiasmal visual defect in a patient with neuromyelitis optica: case report. Information

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LANGUAGE: eng

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AFFILIATION: Departamento de Oftalmologia, Universidade de São Paulo, Ribeirão Preto, SP, Brazil. rmscosta@hcrp.fmrp.usp.br

Country: Brazil

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MEDLINETA: Arq Bras Oftalmol

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