Results:The rate of posterior synechia because of long term use of miotic is 46.7%.
结果：长期用缩瞳剂造成虹膜后粘连的发生率为46 .7% ；
The main postoperative complications were anterior uveitis and posterior synechia of the iris.
术后主要并发症是前葡萄膜炎和虹膜后粘连。
Conclusion:The risk factors for graft failure after PK were corneal vascularization, regraft, aphakia or pseudophakia, presence of anterior or posterior synechia.
结论：与PK手术植片衰竭相关的高危因素包括角膜血管化、再次移植、无晶状体眼、人工晶状体眼、虹膜前或虹膜后黏连；
Conclusion:The risk factors for graft failure after PK were corneal vascularization, regraft, aphakia or pseudophakia, presence of anterior or posterior synechia.
结论：与PK手术植片衰竭相关的高危因素包括角膜血管化、再次移植、无晶状体眼、人工晶状体眼、虹膜前或虹膜后黏连；
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