Horizontal eye movement disorders after posterior vermis infarctions.

Vahedi, K; Rivaud, S; Amarenco, P; Pierrot-Deseilligny, C · J Neurol Neurosurg Psychiatry · 1995

case_control · Level III

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Abstract

The horizontal saccade, smooth pursuit, and vestibulo-ocular reflex gains were recorded in 19 patients with cerebellar infarction documented with MRI, and in a group of control subjects. Bilateral saccade hypometria and a decrease in ipsilateral smooth pursuit gain were found only in patients with a lesion affecting the posterior vermis. These results in humans support experimental findings suggesting that the posterior vermis controls both saccade accuracy and smooth pursuit velocity.

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