Epileptic Nystagmus (EN) is a rare ictal phenomenon that is frequently reported in children rather than adults. EN is characterized by quick, repetitive eye movements. The direction of the nystagmus is defined based on the fast component of eye movements. EN can be a helpful lateralizing sign, and prior reports indicated that its direction is contralateral to the epileptogenic zone. EN is generated through interaction between an ictal discharge frequency and cortical regions implicated in generating the sign.
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