多种角膜曲率测量方法对Toric人工晶体植入术后角膜散光矫正的影响  

Effect of different methods of corneal curvature measurement on postoperative corneal astigmatism correction after implantation of TORIC artificial lens

作　　者：李嘉文[1] 刘玺[1] 李付亮[1] 陈茂盛[2] 

机构地区：[1]第三军医大学西南医院西南眼科医院,重庆400038 [2]重庆爱尔眼科医院,重庆400020

出　　处：《重庆医学》2014年第1期55-57,共3页Chongqing medicine

摘　　要：目的观察不同角膜曲率测量方法对Toric人工晶体植入术后角膜散光矫正的影响。方法分别采用手动角膜曲率仪、IOL-Master、全自动角膜曲率仪、Pentacam眼前节全景仪测量4组年龄相关性白内障合并角膜规则性散光大于1.0D的患者,行超声乳化白内障摘除术,术中将Toric人工晶状体准确放置于目标位置,观察术前及术后1d、1周、1个月、3个月的裸眼视力(UCVA)及最佳矫正视力(BCVA)、术后术眼角膜散光、预期与实际残余散光。结果预期残余散光(ARA)与术后残余散光的偏差绝对值方差分析,差异有统计学意义(P<0.000 1),可以认为4种方法的散光偏差不同;两两比较说明,在0.05水平上,除Master组(0.322)与自动组(0.242),自动组与手动组(0.167),手动组与全景仪组(0.107)偏差无统计学意义外,其他两两之间均有统计学意义(P<0.05),全景仪组(0.107)偏差最小,Master组偏差最大(0.322)。结论采用Pentacam眼前节全景仪的测量结果在计算Acrysof Toric人工晶体精确度上较其他方法更加准确。Objective To observe how different measuring methods of corneal curvature produce affect postoperative corneal a-stigmatism correction after implantation of TORIC artificial lens .Methods To measure 4 teams of age-related cataract patients complicated with regular astigmatism of more than 1 .0D by the procedure of manual keratometer ,IOL Master ,auto keratometer and Pentacam respectively .The Toric artificial lenses were precisely placed in appropriate position in phacoemulsification surgery .We observed the uncorrected visual acuity （UCVA） ,best corrected visual acuity （BCVA） in 1D ,1W ,1M ,3M before and after the sur-gery ,corneal astigmatism after the surgery ,as well as anticipated and consequent residual astigmatism .Results The variance analy-sis of absolute-value deviation between anticipated residual astigmatism （ARA） and best corrected visual acuity （BCVA） is P〈0 .0001 ,the above difference was statistically significant ;we consider that the astigmatic deviation measured by the four methods is different ;besides the deviation of paired comparison results between Master-team （0 .322） and auto-team （0 .242） ,auto-team and manual-team （0 .218） ,manual-team and Pentacam-team（0 .107） is more than 0 .05 and not statistically significant ,all the remaining paired comparison results are statistically significant ,（P〈0 .05） ,the Pentacam-team （0 .082） is the minimum deviation ,while the IOL Master-team （0 .422） is the maximum one .Conclusion The measuring result to estimate the exact value of Acrysof Toric IOL by Pentacam is more accurate than by other methods .

关 键 词：白内障 散光 TORIC人工晶状体 角膜曲率 眼前节全景仪 

分 类 号：R779.6[医药卫生—眼科]