眼球内异物是一种常见的眼外伤。摘除眼球内异物,成败的关键首先在于定位是否准确。过去本院采用吸盘式接触镜式定位器(简称吸盘式定位器)。此定位器使用方便。但是,我们在使用过程中发现它有时有一定程度的误差。我们仿张效房氏的方格定位法,将一个简易方格定位器缝在巩膜上,进行X线摄片定位。简易方格定位器的构造:以探通注射针头的细铜丝(粗约0.2毫米),用微型血管 Intraocular foreign body is a common eye injury. Removal of foreign body eye, the key to success or failure lies in positioning accuracy. In the past, the hospital used sucker contact lens positioner (referred to as sucker positioner). This positioner is easy to use. However, we found that it sometimes has a certain degree of error during use. We imitate Fang’s square grid positioning method, a simple grid positioner sewn on the sclera, X-ray positioning. Simple grid locator structure: to explore the needle needle fine copper wire (roughly 0.2 mm thick), with micro-vascular