Table 1: The modified Dandy criteria for IIH. All criteria must be met.
| Modified Dandy criteria for the diagnosis of idiopathic intracranial hypertension |
| 1. Signs and symptoms of increased intracranial pressure: Headaches, Nausea, Vomiting, Visual changes, Papilledema. |
| 2. No localizing or focal neurologic signs or impaired level of consciousness otherwise, with the single exception being unilateral or bilateral VI nerve paresis. |
| 3. Elevated CSF pressure, but with no cytologic or chemical abnormalities otherwise. |
| 4. No etiology for increased ICP on neuroimaging findings. |