What is the causes of crossed eyes?

Answer:

Over firing of neurons specific to the muscle in the direction of the eye turn or under action of an opposing muscle. For example, if your eye turns inward it could be over firing of the 3rd cranial nerve causing over action of the medial rectus, or it could be underaction of the 6th cranial nerve which causes the lateral rectus to be too weak to compensate for the adduction action of the medial rectus.

First answer by ID1485194944. Last edit by ID1485194944. Question popularity: 4 [recommend question].