1.Extraocular muscles play an important role in the normal movement of globe and formation of normal vision,whose lesions may result in strabism and ocular motor disturbance.
2.Myasthenia gravis preferentially affects young women or older men and commonly affects the extraocular muscles leading to eyelid drooping or double vision, but it might affect any skeletal muscle.
3.Myasthenia gravis can affect the extraocular muscles, which control movement of the eye as well as the eyelids, so individuals might have diplopia or double vision, as well as ptosis, or drooping eyelids.