Acrysof Toric人工晶状体植入矫正低度角膜散光的效果  

Visual Outcome of the Toric Intraocular Lens in Eyes with Low Corneal Astigmatism

作　　者：傅亚娜 赵于渔 胡曼 寇姣姣 陈栋杰 赵云娥 Yana Fu;Yuyu Zhao;Man Hu;Jiaojiao Kou;Dongjie Chen;Yun′e Zhao(Eye Hospital,Wenzhou Medical University,Wenzhou 325027,China)

机构地区：[1]温州医科大学附属眼视光医院,325027

出　　处：《中华眼视光学与视觉科学杂志》2019年第4期252-258,共7页Chinese Journal Of Optometry Ophthalmology And Visual Science

基　　金：温州市科技局公益性社会发展(医疗卫生)科技项目(Y20160440).

摘　　要：目的:探讨合并低度角膜散光的白内障手术中AcrysofToric人工晶状体(IOL)植入的临床疗效。方法:前瞻性系列病例研究。选择2016年1-12月于温州医科大学附属眼视光医院行白内障微切口超声乳化吸除联合IOL植入的年龄相关性白内障合并低度角膜散光(≤1.0D)患者56例(65眼),根据患者意向分为2组:散光组(Toric组,n=33眼)植入散光型人工晶状体(Acrysof IQ Toric IOL,SN6AT2&SN6AT3);对照组(IQ组,n=32眼)植入非散光型人工晶状体(Acrysof IQ IOL,SN60WF)。观察2组手术前后的裸眼远视力(LogMAR)、最佳矫正远视力(LogMAR),术前角膜散光,术后残余散光,术后等效球镜度和IOL轴位等,并对术后残余散光进行矢量分析。随访3个月。采用独立样本t检验及秩和检验对数据进行统计学分析。结果:术前Toric组最佳矫正远视力中位数为0.39,IQ组为0.30。术后3个月Toric组裸眼远视力中位数为0.09,优于IQ组的0.15,二者差异有统计学意义(Z=-2.802,P=0.005)。术后3个月Toric组残留散光值中位数为0.50D,小于IQ组的1.00D,二者差异有统计学意义(Z=-3.636,P<0.001)。矢量分析显示,Toric组术后3个月残留散光的矢量J0比IQ组的减小0.11D(t=1.456,P=0.151),J45减小0.11D(t=1.998,P=0.050)。结论:与普通非球面IOL相比,散光型Toric IOL(SN6AT2&SN6AT3)植入能够更加有效地矫正低度角膜散光(≤1.0D),提高白内障患者术后视力。Objective:To evaluate the results of a Toric intraocular lens (IOL) for correction of low preoperative astigmatism in cataract patients.Methods:In this prospective,case series study,65 eyes (56 cataract patients) were enrolled from January to December 2016 from Eye Hospital,Wenzhou Medical University, all patients were divided into 2 groups:A Toric group (n=33) with implantation of a Toric IOL (Acrysof IQ Toric IOL,Alcon,SN6AT2 and SN6AT3);an IQ group (n=32) with implantation of a non-Toric IOL (Acrysof IQ IOL,Alcon,SN60WF).Uncorrected distance visual acuity (UDVA,LogMAR),best corrected distance visual acuity (CDVA,LogMAR),preoperative corneal astigmatism,residual refractive error, and the axis of the toric IOL were measured.UDVA and CDVA were measured preoperatively and 3 months after surgery.A vector analysis of postoperative residual astigmatism was performed and compared between the groups.Data were statistically analyzed using an independent samples t test and non-parametric rank sum test.Results:The preoperative CDVA was 0.39 in the Toric group and 0.30 in the IQ group.At 3 months after surgery,the UDVA in the Toric group was 0.09,which was significantly better than that in the IQ group (Z=-2.802,P=0.005).The median residual astigmatism in the Toric group was 0.5 D,which was significantly smaller than that in the IQ group (1.00 D,Z=-3.636,P<0.001). Vector analysis showed that the difference in the mean vector J0 between the Toric group and IQ group was 0.11 D (t=1.456,P=0.151),and that of J45 was 0.11 D (t=1.998,P=0.050).Conclusions:Compared with non-Toric IOLs,Toric IOLs (SN6AT2 and SN6AT3) are more efficient for the correction of low corneal astigmatism (≤1.0 D).

关 键 词：超声乳化 人工晶状体 角膜散光 低度 

分 类 号：R779.66[医药卫生—眼科]