CN: cranial nerve; IIH: idiopathic intracranial hypertension.
* Refer to the UpToDate table on etiology third nerve palsy.
¶ Refer to the UpToDate table on etiology fourth nerve palsy.
Δ Refer to the UpToDate table on etiology sixth nerve palsy.
◊ Diplopia from causes other than CN VI palsy may occur with IIH.