내시경 부비동 수술 후 발생한 시력 손실이 동반된 안와 기종 1예

Orbital complications following endoscopic sinus surgery are rare but may lead to serious morbidity, because the paranasal sinuses are adjacent to the orbit. Orbital complications following blindness are mostly caused by direct injury of orbital contents such as optic nerve, extraocular muscles, and its blood supply. And it also progress rapidly. We report a case of orbital emphysema with visual loss after endoscopic sinus surgery without direct damage of orbital contents. (J Clinical Otolaryngol 2017;28:277-282)