预劈核技术在晶状体超声乳化手术中的应用  

The clinical application of pre-chop technique in phacoemulsification

作　　者：杨国进[1] 王瑞华[1] 

机构地区：[1]河南平顶山煤业集团总医院眼科,467000

出　　处：《中华眼外伤职业眼病杂志》2011年第8期591-594,共4页Chinese Journal of Ocular Trauma and Occupational Eye Disease

摘　　要：目的评价预劈核技术在超声乳化白内障手术中应用的效果。方法硬核晶状体的超声乳化手术220例（290眼），其中Ⅲ级核184眼，Ⅳ级核106眼，分别随机分为A组（预劈核组）和B组（常规劈核组）。观察两组术后视力、超声乳化时间、角膜内皮细胞密度（CD）、角膜细胞面积变异系数（CV）以及手术并发症等指标。结果Ⅲ级核者术后视力以及其他指标两组差异无统计学意义（P〉0．05）；Ⅳ级核者术中超声乳化所用时间及术后1周内角膜内皮细胞变异系数A、B两组差异有统计学意义（P〈0．05），但术后视力和角膜内皮细胞密度两组差异无统计学意义（P〉0．05）。结论晶状体核的预劈开技术对于Ⅳ级核白内障能较好地维持前房稳定性，因而降低了角膜内皮细胞损伤的机率，提高了手术质量。Objective To evaluate the effect of pre-chop on phacoemulsification. Methods Participants of 220 patients （290eyes） performed phacoemulsification. Of 184 eyes were in m grade nuclear group; and 106 eyes were inIV grade nuclear group. Each group was divided into two subgroups according to their surgical technique：group A（pre-chop） and group B （general-chop）. The visual acuity,time of phacoemulsification, corneal endothelial cell density, coeffcient of variation of corneal endothelial cell area and operative complications were observed. Results Of the Ⅲ grade nuclear group there were no statistical significant difference between group A and group B. Of theIVgrade nuclear greap, there was statistical significant difference between these two groups in time of phacoemulsification and coefficient of variation of corneal endothelial cell area at 1 week post-operation, but no statistical significant difference in visual acuity and corneal endothelial cell density. Conclusion Pre-chop can maintain the stability of anterior chamber ,protect corneal endothelial cells, and improve the quality of operation.

关 键 词：预劈核 白内障 超声乳化 

分 类 号：R779.66[医药卫生—眼科]