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比较 3.2 mm上方角膜缘切口、上方巩膜切口和颞侧角膜缘切口行超声乳化白内障吸出后房折叠人工晶体植入术 (PEA+ FIOL 术 )术后角膜屈光状态。方法 :对 6 8例 73眼白内障患者行 3.2 mm切口的 PEA+ FIOL 术 ,其中 39眼为上方角膜缘切口 ,上方巩膜和颞侧角膜缘切口各 17眼。结果 :(1)各组间比较 :与上方角膜缘切口相比 ,角膜散光在颞侧角膜缘切口组 ,术后 1天和 1周时明显减小 ,P<0 .0 5 ,且视力在一周内也好于其他两组 ;上方巩膜切口组无明显差异 ,P>0 .0 5。 (2 )各组内相比 ,上方巩膜切口及颞侧角膜缘切口组 ,术后角膜散光均较术前增大 ,P<0 .0 1;上方角膜缘切口组术后 3个月时 ,角膜散光较术前减小 ,其他各时期增大 ,P<0 .0 1。结论 :(1) PEA+ FIOL术三种 3.2 mm切口比较 :1视力 :早期 (1周内 )视力 ,以颞侧角膜缘切口为好 ;远期 (3个月 )视力 ,各切口无明显区别。 2角膜散光 :术后 1天、 1周时 ,颞侧角膜缘切口较上方角膜缘切口散光减小 ;3个月时 ,上方角膜缘切口散光近于消失 ;(2 )三种切口均可导致一过性角膜散光增大 ,但其与非矫正视力的恢复无关
The postoperative corneal refractive status of posterior chamber fold intraocular lens implantation (PAA + FIOL) was compared with 3.2 mm superior limbal incision, superior scleral incision and temporal corneal incision. Methods: PEA + FIOL with 3.2 mm incision was performed on 68 cases of 73 cataract patients, of which 39 eyes were the upper limbal incision and the upper sclera and temporal limbal incision were 17 eyes. Results: (1) Comparison among groups: corneal astigmatism was significantly reduced in the temporal limbic incision group at 1 day and 1 week after operation, P <0. 05, and visual acuity One week is also better than the other two groups; the upper scleral incision group no significant difference, P> 0.05. (2) Compared with the preoperative, the corneal astigmatism and scleral incision in the upper scleral incision group and the temporal limbal incision group, P <0. 01; 3 months after operation in the upper limbal incision group, Corneal astigmatism decreased compared with preoperative, the other periods increased, P <0. Conclusion: (1) PEA + FIOL three 3.2 mm incision comparison: 1 visual acuity: early (within 1 week) visual acuity, temporal limbal incision is better; long-term (3 months) vision, the incision no significant difference. 2 corneal astigmatism: 1 day, 1 week, temporal limbal incision compared with the top of the corneal incision astigmatism decreased; 3 months, the top of the limbal astigmatism disappeared; (2) all three incisions can lead to A transient corneal astigmatism increased, but it has nothing to do with the recovery of uncorrected visual acuity