Myasthenia Gravis (MG) is an autoimmune disease that affects the transmission of signals from nerves to muscles. Ocular Myasthenia Gravis is a type of MG that only affects the eyes and eyelid movement.
Symptoms of Ocular Myasthenia Gravis
Symptoms of Ocular Myasthenia Gravis include:
- drooping of one or both eyelids (ptosis)
- blurred vision
- double vision (diplopia)
A hallmark of Ocular MG is that muscle weakness increases with activity and improves with rest.
Diagnosis of Ocular Myasthenia Gravis
To diagnose Ocular Myasthenia Gravis, a physician will review the patient’s history, do a physical and neurological exam, and observe symptoms.
Various tests used to confirm the diagnosis are:
- a blood test
- a nerve conduction study
- single fiber electromyography (EMG)
The doctor may also apply cold packs to the eye or give the patient a medication. An immediate remittance of symptoms indicates Myasthenia Gravis.
Treating Ocular Myasthenia Gravis
Treatments of Ocular Myasthenia Gravis may include:
- assistive devices
- surgery (on occasion)
Approximately 15% of people with MG will experience only ocular problems. Often an Ophthalmologist will diagnose this condition because eye symptoms are frequently the first symptoms to emerge.