白内障不同手术方式对人工晶体眼高阶像差影响的临床观察

Effect of different cataract surgery on higher-order aberrations in pseudophakic eyes

目的观察白内障超声乳化和小切口囊外摘除术两种手术方式术后人工晶状体眼的高阶像差的变化,评价不同手术方式对人工晶状体眼高阶像差的影响。方法连续选取年龄相关性白内障44例(44眼),随机分为两组,A组22例(22眼)实施巩膜隧道切口(5.5mm)白内障囊外摘除联合人工晶体植入术;B组22例(22眼)实施巩膜隧道切口(3.0mm)白内障超声乳化摘除联合人工晶体植入术;并设同龄正常晶状体眼22例(22眼)为对照组。分别采集术后1周、1个月、3个月及对照组波前像差值并进行统计学分析,比较实验组间、实验组与正常对照组间高阶像差的差异。结果术后1周、1个月、3个月A组和B组之间高阶像差的差异无统计学意义(P>0.05),A、B两组分别与正常对照组比较,高阶像差的差异均有统计学意义(P<0.05)。结论人工晶状体眼的高阶像差较正常晶状体眼增大,白内障超声乳化和小切口囊外摘除两种手术方式对高阶像差的影响无明显差异。

Objective To review the higher-order aberrations of pseudophakic eyes after phacoemulsification and small incision extracapsular cataract extraction,and to evaluate the impact on the higher-order aberrations of pseudophakic eyes by the two different surgical methods.Methods Forty-four cases（44 eyes） of age-related cataract patients were randomly divided into two groups,namely Group A（extracapsular cataract extraction surgery group） and group B（phacoemulsification group）,and set 22 normal phakic eyes in age-matched persons to be the control group.The higher-order aberrations of postoperative 1 week,1 month and 3 months in sugical groups and the control group were measured and analyzed respectively.Results During same periods of postoperative time,there is no significant differences in the higher-order aberrations between Group A and Group B（P0.05）,and the differences of Rmsh between the control group and Group A、B apart were significant（P0.05）.Conclusions The higher-order aberrations in pseudophakic eyes were higher than that in normal phakic eyes.There were no significant differences in the effect of different cataract surgery on higher-order aberrations in pseudophakic eyes.