Which nerve is associated with eye movement?

The abducens nerve is primarily responsible for eye movement, specifically the lateral movement of the eye. It innervates the lateral rectus muscle, which allows for abduction of the eye — the movement of the eye away from the midline. As a result, this nerve plays a crucial role in coordinating eye movements, particularly in following objects laterally.

The optic nerve, while vital for vision, transmits visual information from the retina to the brain, and does not have a function in eye movement. The facial nerve is primarily responsible for movements of facial expressions and has a role in taste sensation and certain functions of the salivary glands. The vestibulocochlear nerve is involved in hearing and balance, not in controlling eye movements. Hence, the abducens nerve is the correct choice when considering which nerve is specifically related to the movement of the eyes.