Patient Portal: Myasthenia Gravis

Myasthenia gravis (MG) is an autoimmune disease in which the body's immune system creates antibodies (proteins that normally protect us) that may attack receptors on your muscles. This results in muscle weakness because the muscles do not receive the signals to contract (tighten). Muscles anywhere within the body may be affected. In ocular MG, eyelid droop (ptosis) and double vision may occur if the muscles that control the eyelids and eye movements are affected. In generalized MG, muscles of the eyes, limbs, neck, as well as muscles of speaking, swallowing or breathing may also be involved. Patients with ocular MG can develop generalized MG over time so it is important to monitor closely.