Patient Portal: Idiopathic Intracranial Hypertension (IIH)

Idiopathic intracranial hypertension (IIH), also called pseudotumor cerebri, is a condition in which there is high pressure in the fluid surrounding your brain, spinal cord and optic nerves. This can cause headaches and problems with vision. Although the cause(s) of the condition is not fully understood (the definition of "idiopathic"), we know much about the condition itself.