What common function is associated with both the oculomotor and trochlear nerves?

The oculomotor and trochlear nerves share the common function of facilitating eye movement. The oculomotor nerve is responsible for controlling most of the eye's movements, including the movement of the pupil and eyelid elevation. It innervates several eye muscles, allowing for a range of movements such as adduction, elevation, and depression of the eye.

The trochlear nerve, on the other hand, specifically innervates the superior oblique muscle, which is responsible for rotating the eye inward and downward. Therefore, both nerves play a crucial role in coordinating the movement of the eyes, allowing for smooth tracking and focusing on objects.

In contrast, the other options do not apply. Vision pertains to the function of the optic nerve rather than eye movement. Facial sensation is linked to the trigeminal nerve, and hearing is associated with the vestibulocochlear nerve.