电子和手工环形撕囊

Comparison of diathermic capsulotomy and capsulorhexis

目的 分析超声乳化术中电子与手工连续环形撕囊2种方法的临床特点及晶状体囊膜边缘的病理结果。方法 对随机抽取的电子与手工连续环形撕囊各 5 0例 5 0眼进行随访。取部分前囊膜行病理检查。结果 病理切片显示 :电子环形撕囊的前囊膜反卷、增厚重叠在一起 ,晶状体上皮细胞排列失去规则。在超声乳化及人工晶状体植入的过程中电子环形撕囊的囊膜边缘较手工环形撕囊易撕裂。手工环形撕囊的囊膜边缘上皮细胞排列整齐 ,不易发生撕裂。结论 对于初学者及某些特殊类型的白内障 ,电子环形撕囊简单易操作 ,同时对于手工撕囊失败的病例是一种有效的补救方法 ,但有撕囊口易撕裂的缺点。

To analyze the clinical features and pathology of the capsule using diathermy capsulotomy and capsulorhexis in cataract surgery. Method The diathermy capsulotomy and capsulorhexis groups,50 cases(50 eyes) in each,were investigated and compared.Results The capsule edge shrank and lost its elasticity and regularity in diathermy capsulotomy due to thermal effect.In addition,the edge were easily teared radially kuring emulsification and implantation following diathermy capsulotomy.In the capsulorhexis group,the capsule edge was smooth and usually kept its contour during emulsification and implantation.Conclusion The diathermy capsulotomy is easy to manual especially for learners.It is also useful for some special types of the cataract and as an alternative method for the capsulorhexis failure cases.The main disadvantage is the fragile capsule edge following the diathermy capsulotomy.