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Japanese

Objective Evaluation of the Visual Field Defects in a Patient with Cerebral Infarction Using Multifocal VEPs Eiichi Yukawa 1 , Kozue Saitou 2 , Yeong-Jin Kim 3 , Shinji Maruoka 1 , Mamiko Kanzaki 1 , Yoshiaki Hara 1 1Department of Ophthalmology, Nara Medical University 2Department of Neurology, Nara Medical University 3Department of Neurosurgery, Nara Medical University Keyword: multifocal visual evoked potentials , cerebral infarction , visual field pp.408-412
Published Date 2006/5/1
DOI https://doi.org/10.11477/mf.1406100169
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Purpose :We investigated whether visual field defects can be objectively evaluated using multifocal visual evoked potentials(mVEP)in a patient with cerebral infarction in whom it is difficult to measure the visual field.

 Methods : To determine normal waves in mVEP, recording was performed using a VERIS Junior Science (Mayo, Aichi, Japan) in 20 healthy subjects (20 eyes), peak latency and amplitude were used for assessment. In a patient with cerebral infarction, mVEP were recorded, and compared with the lesion observed by computed tomography.

 Results : In 20 healthy subjects, the waveforms in the nasal and temporal quadrants were very similar but the waveforms in the superior and inferior quadrants were mirror images. The mVEP in patient with cerebral infarction showed abnormal waves, corresponding to the visual field defects in the lesion observed by computed tomography.

 Conclusions : Objective evaluation of visual field defects using mVEP may be useful in patients with cerebral infarction in whom kinetic/static perimetry as a subjective examination is difficult.


Copyright © 2006, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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