透明角膜小切口白内障手术后角膜散光变化  

Clinical observation of astigmatism induced by corneal incision after phacoemulsification

作　　者：谢立信[1] 朱刚[1] 王旭[1] 

机构地区：[1]山东省眼科研究所,青岛266071

出　　处：《中华眼科杂志》2001年第2期108-110,共3页Chinese Journal of Ophthalmology

摘　　要：目的　评价透明角膜小切口超声乳化白内障吸除折叠式人工晶状体植入术后角膜散光的变化。方法　将 6 2例 (78只眼 )白内障患者 ,按照切口位置位于颞上方及鼻上方或角膜曲率最大子午线轴位分为A、B两组 ,行透明角膜小切口超声乳化白内障吸除折叠式人工晶状体植入术 ,比较术后角膜散光的变化情况。结果　A、B两组术后 3个月平均手术性角膜散光度分别为 (0 83± 0 6 5 )D和 (0 72± 0 5 5 )D ,差异无显著性 (P >0 0 5 ) ;平均角膜散光度分别较术前减少 0 11D和 0 39D ,两者比较差异有显著性 (P <0 0 5 )。结论　以透明角膜小切口行超声乳化白内障吸除折叠式人工晶状体植入术 ,术后角膜散光度小 ;结合散光轴位选择切口位置 。Objective To evaluate the changes of astigmatism induced by corneal incision after phacoemulsification. Methods Phacoemulsification was performed on 62 cases (78 eyes) without suture for a corneal incision. The changes of corneal astigmatism before and after operation in group A (incision at the superior nasal or superior temporal) and B (incision at the steepest corneal meridian) were compared. Results Three months after the operation, the surgical induced astigmatism was (0 83±0 65)D and (0 72±0 55)D in group A and B respectively. There was no significant difference, statistically ( P > 0 05). The changes of corneal astigmatism were 0 11 D and 0 39 D in group A and B respectively, the difference being statistically significant ( P < 0 05). Conclusion Surgically induced astigmatism is very small after a corneal incision in phacoemulsification without a suture. If the incision is placed on the steepest meridian, the corneal astigmatism can be siginificantly reduced postoperatively.

关 键 词：超声乳白内障吸除术 晶体 散光 眼角膜 白内障 

分 类 号：R779.66[医药卫生—眼科]