Epileptic disorders : international epilepsy journal with videotape
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Paroxysmal tonic upgaze deviation (PTU) is a rare neuro-ophthalmological disorder with onset in infancy or early childhood. It consists of episodes of sustained, conjugate, upward deviation of the eyes, down beating saccades in attempted downgaze, apparently preserved horizontal eye movements, frequent association with mild ataxia or clumsiness at time of illness, normal metabolic, electroencephalographic and neuroradiological findings. ⋯ To date, the pathogenesis of the condition is still unknown. We present a new case of PTU with ataxia occurring in an otherwise healthy child, as documented by video recording of the phenomenon.