Which disease is associated with ocular flutter and opsoclonus?

• A. Cerebellar disease
• B. Frontal lobe disease
• C. Basal ganglia disease
• D. Temporal lobe epilepsy

Answer: (A)

Ocular flutter and opsoclonus arise from dysfunction in the cerebellar circuits that regulate rapid eye movements. The cerebellum helps time and fine‑tune saccades and suppress unwanted bursts from the brainstem gaze centers. When cerebellar function is disrupted, these restraints weaken, leading to rapid, involuntary eye movements: ocular flutter (brief, predominantly horizontal) and opsoclonus (chaotic, multidirectional saccades). This pattern is classic for cerebellar disease, including paraneoplastic opsoclonus–myoclonus syndrome. Frontal lobe, basal ganglia, or temporal lobe epileptic processes don’t typically produce this specific combination of rapid, multidirectional eye movements.