The trochlear nerve is one of six cranial nerves that carry electrical impulses from the brain to the eye. It controls the movements of the superior oblique muscle, which helps your eye move down ...

The trochlear nerve, like the oculomotor nerve, originates in the midbrain. It powers the contralateral superior oblique muscle that allows the eye to point downward and inward.

DISTURBANCES of eye movements frequently confront the physician with puzzling diagnostic problems. First of all, the examiner must determine whether the abnormal function of eye muscles is the resu ...

The 12 cranial nerves are pairs of nerves that start in different parts of your brain. Learn to explore each nerve in a 3D diagram.

Your eye is made up of three nerves that control the movement of your eyes, the location of your eyelids, and the size of your pupils. These nerves are the oculomotor nerve, the trochlear nerve ...

Along with the oculomotor nerve (CN III) and the trochlear nerve (CN IV), it provides movement to the muscles around the eyeball rather than attaching to the eye itself.

Eye movements demonstrating left superior oblique underaction on right gaze simulating inferior oblique overaction. Notice that tumour bulk effectively occludes left eye on right gaze.