Ocular flutter and ataxia associated with AIDS-related complex

Abstract
Saccadic oscillations and ataxia have been described in association with viral encephalitis. The authors describe two patients with AIDS-related complex who developed ocular flutter and ataxia. CSF analysis revealed a pleocytosis. Magnetic resonance imaging of the brain in one showed cerebellar atrophy. Ocular flutter, prominent with horizontal saccadic eye movements, was documented by electro-oculography. Blinking induced flutter in one patient while convergence induced it in the other. This is the first report of patients with probable HIV-related brainstem encephalitis suffering ocular flutter.