Visual Outcome and Recurrence Rate in Children With Idiopathic Intracranial Hypertension.

The purpose of this retrospective study was to evaluate the visual outcome and recurrence rate of idiopathic intracranial hypertension in children. The study included 68 patients who were diagnosed with idiopathic intracranial hypertension according to the modified Dandy criteria. Permanent visual impairment was rare. Three percent remained with mild visual impairment, 4% with minimal visual field defects, and only 1 patient had severe visual impairment. However, 26% had either a prolonged course of disease or a recurring condition. Higher cerebrospinal fluid opening pressure was the only clinical predictor at presentation (P = .04). Recurrence rate was 18%, and in most cases, the second episode occurred during the first year after remission. There was no significant difference between the group of patients with only 1 episode and the group of patients with more than 1 episode. We suggest long-term follow-up after remission, for at least a year, for all children with idiopathic intracranial hypertension.