非球面预装式人工晶状体植入术后的临床观察

目的 观察非球面预装式人工晶状体（KS-3Ai）植入术后的临床效果。设计 回顾性病例系列。研究对象 老年性白内障患者74例（82眼）。方法 将上述患者随机分为A、B两组，A组38例（43眼），B组36例（39眼），两组均行超声乳化白内障吸除术联合人工晶状体植入术（A组KS-3，B组KS-3Ai），术后3个月观察术眼的对比敏感度和波阵面像差的改变。主要指标对比敏感度和波阵面像差。结果 两组患者均未发生手术并发症。A组高频段空间频率（1．0deg、0．7deg）对比敏感度低于B组（t=3．69，2．71，P均=0．00），差异有统计学意义。A组高阶像差均方根值高于B组（t=4．32，P=0．00），差异有统计学意义。结论 非球面预装式人工晶状体可减少球面像差，提高患者的对比敏感度。

Clinical evaluation of preloaded aspheric IOL implantation

Objective To evaluate the clinical efficacy after implantation of preloaded aspheric intraocular lens.Design Retrospective case series.Participants 74 patients(82 eyes)with age-related cataract:38 patients(43 eyes)in group A(control group),36 patients(39 eyes)in group B(case group).Methods 74 patients(82 eyes)were randomly selected to receive phacoemulsification with KS-3(group A)and KS-3Ai(group B)IOL implantation.The wavefront aberrations and contract sensitivity were measured 3 months post-operatively.Main Outcome Measures Wavefront aberrations and contract sensitivity.Results No complications occurred in both gruops.In 1.0deg,0.7deg,the mean contract sensitivity in group A were lower than those in group B(t =3.69,2.71;P<0.05).The mean higher order root mean square(RMSH)in group A were higher than those in group B(t = 4.32,P<0.05).Conclusion KS-3Ai IOL can be implanted easily and safely,and KS-3Ai can also decrease wavefront aberrations and increase contract sensitivity after implantation.