On the frontline: What an optometrist needs to know about myasthenia gravis

作者: Joseph A. Pruitt , Pauline F. Ilsen

DOI: 10.1016/J.OPTM.2009.09.023

关键词: WeaknessMuscle weaknessDiplopiaEyelidBlurred visionPtosisOcular myastheniaSurgeryOptometryMedicineMyasthenia gravisGeneral Medicine

摘要: Abstract Background Myasthenia gravis (MG) is an autoimmune disease that affects the voluntary skeletal muscles. It characterized by transient weakness of muscles improves with rest. Muscle involving eyes can produce signs or symptoms diplopia, blurred vision, ptosis, and ophthalmoplegia. Ptosis defined as abnormal eyelid “drooping” beyond normal 1 to 2 mm upper limbus cornea. Hence, most patients MG have ophthalmic manifestations. Among all MG, up half will exclusively ocular symptoms. In these cases, condition referred myasthenia. Case Report A 60-year-old man was from a neurology clinic for management intermittent diplopia greater than year bilateral ptosis prior year. He reported he first noticed at age 42, but did not receive diagnosis until before his aforementioned examination. prescribed spectacles crutches. severe seronegative subsequently confirmed neurologic examination antibody testing. Conclusions Because undiagnosed myasthenia may present initially symptoms, it important optometrist be familiar simple “in-office” tests performed establish tentative plan. The also participate in manifestations should use crutch (in addition prism occlusion therapies if indicated) nonsurgical intervention ptosis.

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