Oculomotor Nerve Palsy in Idiopathic Intracranial Hypertension: A Case Report and Literature Review

Oculomotor nerve palsy is a rare manifestation of IIH; including our case, we identified eight patients (seven female) presenting in the setting of IIH. All presented with new-onset IIH, and three were fulminant cases with markedly elevated CSF pressures (>50 cm H2O) and ultimately received shunting. Fulminant IIH should be considered in the differential diagnosis of acute oculomotor palsy, particularly when risk factors such as recent weight gain or medication use are present, as early recognition and CSF diversion are important to prevent irreversible vision or cranial nerve deficits.