眼异物是眼创伤中最常见的损害，常因未能及时诊断与治疗而引起继发性感染和一些免疫性疾病，甚而导致失明。为了取出眼内异物，就需要进行准确的异物定位。自1896年威廉（Williams）医师借助X线定位方法，从一位眼外伤儿童的玻璃体内取出一小块铜片后，X线眼异物定位法就被广 Eye foreign body is the most common eye injury injury, often due to failure to timely diagnosis and treatment of secondary infections and some immune diseases, and even lead to blindness. In order to remove the intraocular foreign body, you need to accurately locate the foreign body. Since 1896, William (Williams) physicians using X-ray positioning method, from a traumatic child’s vitreous body removed a small piece of copper, X-ray foreign body localization method is widely