【摘要】 目的评价小切口普通器械劈核法囊外摘出白内障及人工晶状体植入术后角膜散光的变化,探讨其临床应用效果。方法将76例80眼白内障患者以手术切口大小分作A、B2组:A组为小切口普通器械劈核法治疗组,B组为采用大切口囊外白内障摘出法治疗组;分别观察术后角膜散光变化及视力恢复情况。结果术后3个月A、B2组裸眼视力≥1.0者分别为78.6%、65.4%,2组比较差异有显著性(χ2=46.08,P<0.01)。A组术前平均角膜散光度为(0.92±0·87)D,术后3个月为(0.53±0.56)D,平均角膜散光度减少0.39D,两者差异有显著性(u=2.267,P<0.05)。B组术后3个月为(0.62±0.67)D,2组比较,差异有显著性(u=2·016,P<0.05)。结论小切口白内障摘出术后角膜散光度小,视力恢复快,简便安全,不需特殊器械,便于推广。更多还原

【Abstract】 Objective To evaluate the changes of corneal astigmatism after small incision surgery of non-phacoemmulsification and IOL implantation with common lens loop and iris repositor,and observe the clinical effect of the surgery.Methods Seventy-six patients (80 eyes) with cataract were divided into two groups based on the length of incision.Group A was small incision group,and group B was big incision group.Corneal astigmatism of group A and B before and after operation were measured and compared.Results Three months after the operation,the percent of naked vision better than 1.0 in group A and B were 78.6%,65.4% respectively,there was significant difference between two groups(χ2= 46.08,P<0.01).In group A,the mean corneal astigmatism before operation was (0.92±0.87)D,and at 3 months after operation was (0.53 ±0.56)D,which decreased 0.39 D,and there was significant difference (u=2.267,P<0.05).In group B,the mean corneal astigmatism at 3 months after operations was (0.62±0.67)D,there was significant difference between two group (u=2.016,P<0.05).Conclusion After the small incision surgery,the corneal astigmatism is small,and the visual acuity is easy to recover.The surgery is safe and convenient,and easy for extensive basic hospital.更多还原