A Case of Wegener's Granulomatosis Presenting as a Diplopia

Wegener's granulomatosis (WG) is a multisystemic granulomatous inflammatory disorder which is presumably caused by an autoimmune response. It typically targets the upper and lower respiratory tract and the kidney. Ocular involvement occurs in 50 to 60% of WG patients. However, orbital myositis and diplopia as a presenting symptom is a rare ocular manifestation. We present the case of a 49-year-old man who was admitted with bilateral diplopia due to orbital myositis under a diagnosis of WG. He was successfully treated with high dose corticosteroid therapy.