A complex system of nerves and muscles enables the human eye to blink, gaze, and shift focus. The trochlear nerve is one of six cranial nerves that carry electrical impulses from the brain to the eye.

Oculomotor nerve palsy is a nerve condition that affects your vision. It can lead to double vision and difficulties using both eyes together. A weakness in the oculomotor nerves causes this condition, ...

Sixth nerve palsy is a nerve disorder. When your sixth nerve isn't working properly, it causes problems with the movement of your eye. Sixth nerve palsy is also known as lateral rectus palsy. Palsy is ...

The colored part of the eye surrounding the pupil is called the iris. It automatically regulates the amount of light entering the eyes by regulating the size of the pupil. Light is the primary ...

Hypotropia is when one eye tilts downward. It’s often caused by problems with the muscles around your eyes or the nerves that control them. Hypotropia falls into a group of conditions called ...

Facial nerve disorders can significantly impact your quality of life, affecting how you speak, eat, drink, and express emotion.A facial nerve disorder results from damage to the nerves controlling ...

According to Kristine B. Hopkins, O.D., professor at the University of Alabama at Birmingham School of Optometry and associate dean of Academic Affairs, double vision, or diplopia, is an eye disorder ...