摘要
目的 :探讨穿透性角膜移植 (PK)术中减少术后散光的有效方法。方法 :应用不同环钻 (Barron放射真空环钻及 Storz环钻 )及手术技术对两组患者共 2 4例施行 PK,术后 6月、 12月及 15月 (拆线后 3个月 )检查视力、最佳矫正视力 ,术后 12月检测屈光性散光及角膜地形图散光。结果 :术后 6月、 12月及 15月 ,Barron组视力、最佳矫正视力显著高于 Storz组 ,术后 12月 ,检测角膜地形图散光及屈光性散光 ,Barron组较 Storz组显著减少。结论 :能提供供体、受体组织高质量钻切的优质环钻是控制PK散光的关键 ,手术技术 (缝线技术、缝线调整技术 )及术中的各个环节均影响术后散光程度。
Purpose:This study retrospectively assessed the outcome of patients who received penetrating keratoplasy use two corneal trephination systems and surgical techniques.Methods:Twenty-four patients(11 with Barron radial vacuum trephine and Barron donor cornea punch system,13 with Storz corneal trephination system)undergoing penetrating keratoplasy with two kinds of surgical techniques were evaluated retrospectively.Acuity and best spectacle corrected visual acuity were assessed 6,12 and 15 months after surgery (3 months after suture removal).Refraction and computed topographic analysis were performed at 12 month.Results:There was much less topographic astigmatism up to 12 months postoperatively in the patients of Barron group (mean,1.14D)than in the patients of Storz group (4.37D).Refractive astigmatism was significantly less in the patients of Barron group (1.02D)than in the patients of Storz group(4.25D).Corneas were much more regular until suture removal in Barron group.Visual acuity and best spectacle corrected visual acuity were much better in barron group than Storz group at 6,12 and 15 months (3 months after suture removal).Conclusion: The authors demonstrated minimization of postoperative astigmatism is dependent on several factors such as the quality of donor and host tissue trephination and surgical technique(suture placement and suture adjustment technique).Each surgery links should be stressed.
出处
《中国实用眼科杂志》
CSCD
北大核心
2001年第1期28-30,共3页
Chinese Journal of Practical Ophthalmology
关键词
穿透性角膜移植术
散光
环钻
PK
Penetrating keratoplasty Astigmatism Trephination Surgical technique
