摘要2例（7岁女性、61岁男性）XEN凝胶引流管植入术后眼压控制欠佳患者，在行滤过泡修复过程中XEN凝胶引流管退入前房，分别做角膜缘和角膜切口，将移位前房的XEN凝胶引流管取出后，例1患者自原巩膜隧道重新植入前房，例2患者使用1 ml注射器针头更换部位重新穿刺做通道植入前房，术后分别随访3周和6个月，效果良好。

abstractsTwo patients (a 7-year-old female and a 61-year-old male) had poor intraocular pressure control after XEN gel stent implantation. During the process of filtering bleb repair, the XEN gel implant retreated into the anterior chamber, and the limbal and corneal incisions were made. After the implant in the anterior chamber was taken out, it was implanted into the anterior chamber again from the original scleral tunnel for the female patient, while it was re-punctured into the anterior chamber with a 1-ml syringe needle at another site for the male patient. The follow-up examinations at 3 weeks and 6 months after surgery showed good results.