Prognosis
It is not known what percentage of people with IIH will remit spontaneously, and what percentage will develop chronic disease.
IIH does not normally affect life expectancy. The major complications from IIH arise from untreated or treatment-resistant papilledema. In various case series, the long-term risk of ones vision being significantly affected by IIH is reported to lie anywhere between 10 and 25%.
Read more about this topic: Idiopathic Intracranial Hypertension