眼内異物の金属分析

Metallurgical analysis of intraocular foreign bodies

　当院にて眼内異物摘出を受けた5例5眼について，摘出した眼内異物を走査電子顕微鏡で形態観察した後に，エネルギー分散X線解析器を用いて元素分析を行った。鉄とクロムとの比について考察し，鉄に対するクロムの比が大きいほど視力予後は良いという，従来の報告と一致した結果が得られた。

We studied the surface structure of intraocular foreign bodies extracted from 5 affected eyes. A scanning electron microscope and energy dispersive X-ray analyzer were used in the analysis. We also studied the composition of metal elements in the foreign bodies. The findings showed that a higher ratio of iron to chromium tended to result in more severe retinal damage.