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磁性金属角膜异物(铁屑)临床上非常多见,单发者,较易剔除,对角膜损伤亦小。多发性角膜异物,由于其对角膜损伤面积较大,剔除时甚为困难。近年来我们应用冶金部钢铁研究总院生产的G-Y型恒磁吸引器,在手术显微镜或裂隙灯下吸取这类金属异物,取得满意效果,现介绍如下。方法:局部常规消毒,滴3次0.5％地卡因做表面麻醉,置入开睑器,充分暴露角膜,将手术显微镜或裂隙灯调至最清晰位置,仔细观察异物集中的方位,将恒磁铁(钢笔式圆头者为好)置于角膜表面异物处,
Magnetic metal corneal foreign body (iron filings) clinically very common, solitary, easier to remove, the corneal damage is also small. Multiple corneal foreign body, due to its larger area of corneal damage, very difficult to remove. In recent years, we use the G-Y type constant magnetic attractor manufactured by the Steel Research Institute of the Ministry of Metallurgy to absorb such metal foreign bodies under the operating microscope or slit lamp and achieve satisfactory results. The details are as follows. Methods: local routine disinfection, drip 3 times 0.5% of doxycaine surface anesthesia, into the eyelid opening device, fully exposed cornea, the operating microscope or slit lamp adjusted to the most clear position, carefully observe the orientation of foreign body concentration, the permanent magnet (Pen round as well) placed in the corneal surface of foreign body,