動力草刈り機作業中にフェイスシールドを装着していたにもかかわらず穿孔性眼外傷をきたした2例

Perforating eye injury while working with a powered mower in two face-shield wearers

要約　目的：フェイスシールドを装着して動力草刈り機で作業中に異物が飛来し，穿孔性眼外傷が起こった2症例の報告。症例：2例とも男性で，年齢はそれぞれ51歳と61歳である。1例では異物がアクリル製のフェイスシールドを打ち抜き，シールドの破片が左眼角膜を穿孔した。角膜を縫合し硝子体切除を行った。他の1例では異物がフェイスシールドと顔面との隙間から飛入し，左眼角膜を穿孔した。角膜を縫合し水晶体乳化吸引術，眼内レンズ挿入術を行った。2症例とも経過は良好で視力が回復した。結論：動力草刈り機で作業中の眼外傷の予防には，フェイスシールドでは不十分なことがあり，ポリカーボネート製で隙間がない保護眼鏡が有効であると推定される。

Abstract.　Purpose：To report two cases who were hit by flying foreign body in the eye while working with power grass cutters even though they were wearing a face shield. Cases：Both were males aged 51 and 61 years respectively. In the first case, the foreign body penetrated the shield, a broken piece of which injured the left cornea. He was successfully treated by suture of the corneal wound and vitrectomy. In the second case, a foreign body injured the left cornea after passing through the space between the shield and his face. He was successfully treated by suture of corneal wound, phacoemulsification-aspiration, and implantation of intraocular lens. Conclusion：Wearing a face shield may not fully protect the eye when working with power grass cutter. The eyes can be better protected by eyeglasses made of polycarbonate.