Neuro-Ophthalmology & Neuro-Otology
Isolated fourth nerve palsy
Isolated fourth nerve palsy is a typically benign condition that causes ipsilateral hypertropia in primary gaze that increases on contralateral gaze and ipsilateral head tilt. The most frequent etiologies for isolated fourth nerve palsy are decompensation of a congenital weakness, head or surgical trauma, extra-axial nerve ischemia, nerve inflammation, and local compression by tumor.
Feb. 23, 2021