眼内异物所致的损伤常常是比较严重的眼外伤，因此，及时而准确地将眼内异物摘出是十分重要的．而摘出异物的关键是异物的定位。我科自１９８９年１０月以来，采用角膜缘键环 Ｘ线摄片定位法（以下简称缝环定位法），完成限内异物定位４４例，取得较好的效果，现报告如下。 一 Intraocular foreign body damage is often more serious ocular trauma, therefore, timely and accurate extraction of intraocular foreign body is very important. The key is the foreign body foreign body positioning. Our department since October 1989, the use of corneal key ring X-ray positioning method (hereinafter referred to as sewing ring positioning method) to complete the localization of foreign body localization within 44 cases, and achieved good results, are as follows. one