Myasthenia Gravis

Myasthenia Gravis is an autoimmune condition where the body’s immune system has damaged receptors on the muscles. This results in muscle weakness, as receptors are necessary for the muscles to know when to contract. It can include the muscles of the eyelid which can result in lid droop (Ptosis), and muscles of eye movement which can result in double vision. These two symptoms can vary, being worse when tired or later in the day. The reason for the body’s immune system’s attack on the muscles is unclear.