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Optokinetic Nystagmus in Homonymous Hemianopia Due to a Strictly Occipital Lesion

Overview
Specialties Neurology
Psychiatry
Date 1989 Jan 1
PMID 2759153
Citations 1
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Abstract

Optokinetic nystagmus (OKN) was tested in 15 patients with unilateral strictly occipital brain lesions and complete homonymous hemianopia and compared with findings in a group of normal controls. Quantitative analysis of the results in the patients revealed a bilateral disorder of OKN. When the stimulus was moved in the direction opposite to the hemianopic field, there was a significant decrease in optokinetic gain, and the amplitude of nystagmus decreased. There was no correlation between OKN and size of the residual macular field.

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