PURPOSE: To document congenital ocular motor apraxia in five first-degree relatives. METHODS: Case series. Five family members with a history of horizontal head thrusting had neuro-ophthalmologic evaluation. Magnetic resonance imaging of the brain was obtained in the proband. RESULTS: Four siblings (one boy and three girls) had congenital ocular motor apraxia. The father had head thrusting as a child and displayed residual signs of the disorder. Magnetic resonance imaging disclosed no central nervous system abnormalities in the father. CONCLUSION: Congenital ocular motor apraxia can be inherited as an autosomal dominant trait. Copyright (C) 2000 Elsevier Science Inc.
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