目的 比较飞秒激光超声乳化白内障手术与传统超声乳化白内障手术在术源性散光的差异。方法 选择2015年9月—2018年6月收治的白内障患者100例(100眼),采用随机数字表法分为观察组50例(50眼)和对照组50例(50眼)。观察组行飞秒激光超声乳化白内障手术,对照组行传统10点位透明角膜切口传统超声乳化白内障手术。比较两组患者手术前后裸眼视力、最佳矫正视力、角膜散光度、角膜厚度及术源性散光。结果 术后1 d、1周、1个月、3个月两组患者的裸眼视力均较术前提高(P＜0.05),但两组在不同时间点裸眼视力差异无统计学意义(P＞0.05); 两组患者术后1 d、1周、3个月的最佳矫正视力无统计学意义(P＞0.05),术后1个月时对照组患者的最佳矫正视力优于观察组(P＜0.05); 两组术前、术后3个月角膜散光度数、角膜厚度和术源性散光,差异均无统计学意义(P＞0.05)。结论 飞秒激光超声乳化白内障手术与传统超声乳化白内障手术均拥有良好的术后早期裸眼视力,但前者更快达到稳定最佳水平。

Objective To compare the surgically induced astigmatism after femtosecond laser surgery and phacoemulsification in patients with cataract.Methods A total of 100 patients with cataract (100 eyes) were divided into an experimental group (n=50) and a control group (n=50).The experimental group received femtosecond laser surgery,while the control group received traditional phacoemulsification surgery with clear corneal incision at 10 the o’clock position.Uncorrected visual acuity (UCVA),best corrected visual acuity (BCVA),astigmatism,corneal thickness,and surgically induced astigmatism (SIA) were compared between the two groups before and after surgery.Results The UCVA in the two groups 1 day,1 week,1 month,and 3 months after surgery was improved compared with the indicator before surgery (P<0.05),but had no statistical differences between the two groups (P>0.05).The BCVA in the two groups were not statistically different 1 day,1 week,and 3 months after surgery (P>0.05),but 1 month after surgery,the BCVA in the control group was better than that in the experimental group (P<0.05).The astigmatism,corneal thickness,and SIA before surgery and 3 months after surgery were not different between the two groups (P>0.05).Conclusion Although both femtosecond laser surgery and phacoemulsification result in better UCVA at the early period after surgery,but the former effect is faster.