外傷性眼窩気腫の1治験例

A Case of Traumatic Orbital Emphysema

　はじめに

　眼窩気腫は眼窩骨折や副鼻腔炎の手術後に時折見られるが，保存的治療で軽快するのが通常であり，手術適応となることは少ない。今回われわれは眼窩骨折後の擤鼻が原因と思われる眼窩気腫の一手術例を経験したので，若干の文献的考察を加えて報告する。

Orbital emphysema is generally benign and requires no treatment. However, if a fracture produces a ball-valve effect allowing air to enter but not to leave the orbit, extremely high in-traorbital pressure and visual loss is possible. A 23-year-old man was hit his face by a ball. After nose blowing, he developed right facial swelling and high intraorbital pressure. Com-puted tomography demonstrated orbital emphy-sema and fracture of floor of the left orbit. In order to avoid visual loss, transnasal orbital decompression was performed, and the intraorbital pressure was successfully decreased. A post-operative computed tomography showed improve-ment of orbital emphysema.