気圧外傷により複視を生じた症例

A case of diplopia following acute change in environmental pressure

　27歳の女性ダイバーがスキューバダイビングで水深15mに潜降中，右眼痛を感じた。浮上後鼻出血，嘔吐，耳鳴，難聴の症状とともに，数時間後に右眼の上転障害による複視を生じた。諸検査の成績からみて，これらの症状は副鼻腔の気圧外傷（barotrauma）と考えられた。

A 27-year-old female felt acute pain in her right eye while SCUBA diving to the depth of 15 meters. After surfacing, she developed epistaxis, vomiting, tinnitus and hearing loss. Diplopia developed few hours later. When seen by us the following day, shepresented with swelling in the right eyelid and restriction of upper movement of the right eye. Plain and tomographic X-ray examination showed shadows in the right ethmoidal sinus suggestive of hemorrhage. The clinical symptoms disappeared 3 weeks later. Acute rise in environmental pressure during deep sea diving seemed to have induced barotrauma in the oaranasal sinus in this patipnt.