The idiopathic intracranial hypertension prospective cohort study: evaluation of prognostic factors and outcomes.

Background: There are limited longitudinal data evaluating outcomes in idiopathic intracranial hypertension (IIH). We aimed to evaluate the long-term outcomes in a real-world cohort of patients with IIH and sought to establish the prognostic factors.

Methods: A longitudinal prospective cohort study was conducted over 9 years (2012-2021).