The three cranial nerves responsible for eye movements are:
- Cranial nerve III (3), also known as the oculomotor nerve, controls four of the six eye muscles in each eye and is responsible for most eye movements, including:
- Upward gaze
- Downward gaze
- Adduction (moving the eye inward)
- Pupil constriction
- Opening of the eyelids
- Cranial nerve IV (4), also known as the trochlear nerve, controls the superior oblique muscle, which is responsible for downward and outward eye movement.
- Cranial nerve VI (6), also known as the abducens nerve, controls the lateral rectus muscle, which is responsible for outward eye movement.
These nerves are crucial for coordinating eye movements and maintaining proper vision. Damage to any of these nerves can lead to a range of problems, including double vision, difficulty focusing, and eye misalignment.