Objective:To study the efficacy of three-channel self-sealing sclerotomy in 20G vitrectomy.
目的：探讨“三通道”自闭式巩膜隧道切口用于20G玻璃体切割手术的可行性和应用效果。
Objective to investigate whether the failing causes of vitreous surgery were related to the vitreous incarceration of the sclerotomy sites.
目的探讨巩膜穿刺孔玻璃体嵌顿与玻璃体手术失败的关系。
Conclusion Combined type trabeculectomy and tunnel posterior sclerotomy can control the intraocular pressure availably, reduce complications and improve the successful rate of the first surgery.
结论复合式小梁切除术联合后巩膜隧道切开引流降低眼压的术式，可有效地控制眼压，减少并发症，提高一次手术成功率。
Conclusion Combined type trabeculectomy and tunnel posterior sclerotomy can control the intraocular pressure availably, reduce complications and improve the successful rate of the first surgery.
结论复合式小梁切除术联合后巩膜隧道切开引流降低眼压的术式，可有效地控制眼压，减少并发症，提高一次手术成功率。
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