球面散光型与非球面散光型IOL植入术后视觉质量的对比研究  

Postoperative visual quality comparative study of spherical and aspheric astigmatism type of intraocular lens implantation

作　　者：侯培莉[1] 王春红[1] 兰文[1] 黄振平[1] 

机构地区：[1]南京大学医学院临床学院,南京军区南京总医院眼科,江苏省南京市210002

出　　处：《眼科新进展》2013年第12期1136-1139,共4页Recent Advances in Ophthalmology

基　　金：国家自然科学基金面上项目(编号:81270979);江苏省自然科学基金面上项目(编号:BK2012777)~~

摘　　要：目的比较球面散光型人工晶状体(intraocular lens,IOL)与非球面散光型IOL植入术后的视觉质量。方法 52例(55眼)白内障患者分为试验组和对照组,试验组21例(23眼)植入非球面散光型IOL(AcrySof IQ Toric IOL,SN6AT),对照组31例(32眼)植入球面散光型IOL(AcrySof Toric IOL,SN60TT),术后检测两组的裸眼视力、最佳矫正视力、对比敏感度、波前像差等。结果术后1周、1个月、3个月两组的裸眼视力、最佳矫正视力比较差异均无统计学意义(均为P>0.05)。两组术前角膜散光分别为(2.236±1.249)D、(2.393±1.320)D,术后3个月残余散光分别为(0.394±0.242)D、(0.537±0.286)D;两组术前与术后散光比较,差异均有统计学意义(均为P<0.05);两组间术前及术后散光比较,差异均无统计学意义(均为P>0.05)。术后3个月试验组在夜间有无眩光条件下的对比敏感度均优于对照组,差异均有统计学意义(均为P<0.05)。术后3个月在瞳孔直径6 mm时试验组的四阶球差及高阶像差均方根值均低于对照组,差异均有统计学意义(均为P<0.05)。试验组术后1周、1个月、3个月IOL轴位移动度分别为(3.38±1.91)°、(3.39±1.91)°、(4.24±2.08)°,对照组分别为(3.57±1.80)°、(3.86±2.20)°、(4.94±1.85)°,两组差异均无统计学意义(均为P>0.05)。结论非球面散光型IOL可以有效地矫正散光,具有较好的旋转稳定性,同时可以减少球面像差,提高对比敏感度,改善术后视觉质量。Objective To compare the visual quality after spherical(Acrysof Toric IOL,SN60TT)and aspheric(Acrysof IQ Toric IOL,SN6AT)astigmatism type of intraocular lens implantation.Methods Fifty-five eyes of 52 patients with cataract were divided into two groups:the observation group of 21 patients(23 eyes)received the AcrySof IQ Toric IOL implantation,and the control group of 31 cases(32 eyes) received the AcrySof Toric IOL implantation.The postoperative uncorrected visual acuity,best corrected visual acuity contrast sensitivity wavefront aberration were examined.Results There was no statistical difference in uncorrected visual acuity and best corrected visual acuity at postoperative 1 week,1 month,3 months between two groups(all P>0.05).The preoperative corneal astigmatism of observation group and control group were(2.236±1.249)D and(2.393±1.320)D,respectively which at postoperative 3 months were(0.394±0.242)D and(0.537±0.286)D,respectively, there were statistical differences between pre-operation and post-operation of two groups(all P<0.05)but there was no statistical difference in pre-operation and postoperation between two groups(all P>0.05).Three months after operation,the contrast sensitivity of the observation group in the night with glare or not was higher than the control group,the difference was statistically significance(all P<0.05).The RMS values of 4th-order spherical aberration and total high order aberration in the observation group were lower than those in the control group at 6 mm pupil diameter three months postoperatively,the difference was statistically significant(all P<0.05).The IOL rotation at 1 week,1 month and 3 months postoperatively in the observation group were(3.38±1.91)°,(3.39±1.91)° and(4.24±2.08)°,respectively, which in the control group were(3.57±1.80)°,(3.86±2.20)°and(4.94±1. 85)°,respectively,there was no statistical difference between two groups(all P>0. 05).Conclusion The IQ Toric IOL is effective in astigmatism correction and has good rotational stability.At the same t

关 键 词：球面散光型人工晶状体 非球面散光型人工晶状体 对比敏感度 波前像差 视觉质量 

分 类 号：R779.66[医药卫生—眼科]