角膜异物的取出需选择适用的器械,常用器械有尖头平镊子、线状刀、截囊刀或中等深层的角膜异物,上述器械可能得心应手。但对于深层异物特别是一端将进入前房者,往往不易取出。原因是镊类头钝,不能绕过异物背后夹持,反而易将异物推向深层甚至前房,刀、钩类虽能拨动异物,因无法夹持不易剔出。作者据此自制一种钩镊式角膜异物针,将“钩”与“镊”的功能集于一体,大大缩短了手术时间,避免了因反复操作造成的角膜损伤,现介绍如下。一、材料与制作取16号针头一枚,截去针管留取长度20mm,将其顶端重新磨成斜针尖, Removal of corneal foreign body need to select the appropriate equipment, commonly used instruments have pointed flat tweezers, linear knife, sutured knife or corneal foreign body in the middle of the deep, the above devices may be handy. However, deep foreign bodies, especially those who enter the anterior chamber at one end, are often not easily removed. The reason is tweezers blunt type, can not bypass the foreign body behind the clamp, but easy to push foreign matter into the deep or even anterior chamber, knife, hook class can dial foreign body, because it can not easily clamped out. According to this, the author made a hook-type corneal foreign body needle which integrates the functions of “hook” and “tweezers”, which greatly shortens the operation time and avoids the corneal injury caused by repeated operation as follows. First, the material and production Take a 16-pin, truncated needle retention length 20mm, the top of the re-ground into a bevel tip,