Abstract: Idiopathic intracranial hypertension is a disease which has a low incidence and has no clear indication for its diagnosis and treatment. In addition, there is also little report on its surgical treatment. Here we report a case of which the curative effect turned out to be undesired after conservative physical treatment and then the symptom aggravated gradually, finally , we took operation based on bilateral decompressive craniectomy of which the result was favorable and the patient’s sight was restored. Then we took a nine-year long follow-up survey which proved the treatment being effective and the disease is under control.

Key words: Idiopathic intracranial hypertension, Surgical treatment, Bilateral decompressive craniectomy