Trochlear nerve palsy

ByDr.Krupa Goriya May 4, 2024May 7, 2024

Trochlear nerve palsy, also known as fourth cranial nerve palsy, occurs when the trochlear nerve loses its function, leading to either partial or complete paralysis of the superior oblique muscle. Fourth nerve palsy is diagnosed when there is paralysis in one of the eye muscles. Disorders or trauma to the fourth cranial nerve are responsible…

Trochlear nerve

ByKshama Goswami March 21, 2024March 21, 2024

Introduction The trochlear nerve, or fourth cranial nerve (CN IV), acts as one of the ocular motor nerves that regulate eye movement. As the only cranial nerve with a dorsal outflow from the brainstem, the trochlear nerve, despite being the smallest, has the longest intracranial path. It starts in the midbrain and travels laterally and…