Horizontal eye movement disorders after posterior vermis infarctions.
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.
Vahedi
K
K
Service de Neurologie, Hôpital Saint-Antoine, Paris, France.
Rivaud
S
S
Amarenco
P
P
Pierrot-Deseilligny
C
C
D000328:Adult; D000368:Aged; D002526:Cerebellar Diseases / Q000503:physiopathology*; D002544:Cerebral Infarction / Q000503:physiopathology*; D004585:Electrooculography; D005133:Eye Movements; D006801:Humans