报道5例进入前房的角膜深层非金属异物取出手术。术中前房注入2％甲基纤维素,这时前房呈过深状态,增加了异物尖端与晶状体的距离。而且术野清晰,在手术显微镜下准确而完整地取出大部份进入前房并紧密嵌入角膜深层的非金属异物。结果表明前房注入甲基纤维素大大提高了手术的成功率,而且可使晶状体及角膜内皮免遭损伤. Reported 5 cases of corneal access to the anterior chamber deep non-metallic foreign body removal surgery. Intraoperative anterior chamber injection of 2% methylcellulose, when the anterior chamber was too deep state, increasing the distance between the foreign body tip and the lens. And the surgical field is clear, under the operating microscope accurately and completely removed most of the access to the anterior chamber and intimately embedded in the corneal deep non-metallic foreign body. The results showed that injection of methylcellulose in the anterior chamber greatly increased the success rate of surgery and protected the lens and corneal endothelium from damage.