Thelansis

 Ocular myasthenia gravis (OMG) is an autoimmune disorder characterized by weakness of the extraocular eye muscles, levator palpebrae superioris, and orbicularis oculi, resulting in ptosis and diplopia. It primarily affects the ocular muscles without involving other muscle groups. Ocular manifestations are common in myasthenia gravis, occurring in 15-50% of cases, with fluctuating ptosis, diplopia, and orbicular weakness being the most frequent symptoms. OMG primarily presents with ptosis or diplopia due to ophthalmoplegia, with the hallmark features of fatigability and variability. Clinical examination often confirms these characteristics. Ptosis may affect one or both eyelids, and the upper eyelid elevator muscle exhibits fatigability during sustained upgaze. Enhanced ptosis, known as the "curtain effect," occurs when one eyelid is lifted, and the contralateral eyelid develops or worsens existing ptosis. Several tests are employed to diagnose ocular myasthenia gravis, inclu...