neurologic disorders
Idiopathic Intracranial Hypertension
Symptoms and Signs of Idiopathic Intracranial Hypertension
Almost all patients have a daily or near daily generalized headache of fluctuating intensity, at times with nausea. They may also have transient obscuration of vision, diplopia (due to 6th cranial nerve dysfunction), and pulsatile intracranial tinnitus. Vision loss begins peripherally and may not be noticed by patients until late in the course. Permanent vision loss is the most serious consequence. Once vision is lost, it usually does not return, even if ICP is reduced. Bilateral Papilledema is common; a few patients have unilateral or no papilledema. In some asymptomatic patients, papilledema is discovered during routine ophthalmoscopic examination. Neurologic examination may detect partial If clinical findings suggest idiopathic intracranial hypertension, check visual fields and optic fundi, even when patients have no visual symptoms. 