急性篩骨洞炎に合併した視神経症の1例

A case of optic neuropathy as a complication of acute ethmoiditis

　片眼の急激な視力低下をきたし視神経乳頭の発赤腫脹をみた13歳女児の1例においてCT像と超音波像にて論骨洞炎と眼窩内，眼球周四の炎症所見を見出した。同症例に対してステロイドを用いず抗生物質の投与を行った結果，篩骨洞および眼所見の著明な改善を見た。

　CTおよび超音波検査は，副鼻腔炎に合併した視神経症の診断においてきわめて有用と思われた。

A 13-year-old girl developed sudden impairment of vision in her left eye. Slight lid swelling and con-junctival injection in the left eye had been present for the preceding 4 weeks. The left visual acuity was reduced to 20/100. Relative central scotoma was detected. The left eye showed restricted ocular motility and no proptosis. Funduscopy revealed disc swelling and star-figure in the macula in the affected eye. Ultrasonography demonstrated in-creased thickness of posterior ocular wall and re-trobulbar edema on the affected side.