高度近视并发白内障合并角膜散光植入Toric人工晶状体稳定性的临床研究

目的 评价Acrysof Toric复曲面人工晶状体(IOL)在高度近视并发白内障合并规则角膜散光的患者的临床效果及其旋转稳定性.方法 随机选取该院2009年6月至2011年8月白内障合并角膜散光的患者,行白内障超声乳化手术并植入Acrysof Toric IOL.其中实验组40例(43眼),高度近视并发白内障患者(眼轴长度≥26 mm),植入IOL度数≤15 D;验光球镜(-5.50～-10.25)D,平均(-6.25±-0.25)D,柱镜(-1.25～4.25)D,平均(-2.75±-0.25)D.对照组39例(40眼)单纯散光白内障患者(眼轴长度为22~24 mm),验光球镜(-0.25

Clinical study on the stability of high myopia cataract with intraocular lens implantation on corneal astigmatism Toric

Objective To evaluate the Acrysof Toric toric surface artificial lens in cataract with high myopia associated with regular corneal astigmatism in patients with clinical effect and rotational stability.Methods A randomly selected from 2009 June to 2011 August during the cataract and corneal astigmatism in patients,phacoemulsification and implantation of Acrysof Toric IOL operation.The experimental group of 40 patients(43 eyes),cataract with high myopia patients(axial length≥26mm,IOL≤15D) implantation degree;optometry mirror ball(-5.50——10.25)D,average(-6.25±-0.25)D,column mirror(-1.25-4.25)D,average(-2.75±-0.25)D.A control group of 39 cases(40 eyes) simple astigmatism in cataract patients(axial length≤24mm ≥22mm),optometry mirror ball(-0.25——1.25),average(-0.75±-0.25)D,column mirror(1.50-4.25)D,average(-2.50±-0.25)D.Postoperative March fully after mydriasis slit-lamp photography,using Adobe Photoshop software artificial lens axis analysis,were recorded during the preoperative,postoperative observation of uncorrected visual acuity(UCVA),best corrected visual acuity(BCVA),postoperative corneal astigmatism and whole-eye astigmatism astigmatism,expected and actual residual astigmatism,IOL degree of rotation.Results After March,UCVA>0.5 eyes had no significant difference between two groups(P>0.05).BCVA>0.8 eyes had no significant difference between two groups(P>0.05).Postoperative residual astigmatism in March,the experimental group for the(0.56±0.33)D,control group(0.54±0.32)D,the difference was not statistically significant(P>0.05);March after intraocular lens degree of rotation,the experimental group was 3.79°±2.33°,rotation range is(-6.25°,+7.78°);the control group was 2.75°±1.38°,rotation range was(-4.62°,+6.15°),two groups of rotating degree of the differences were statistically significant(P<0.01).After March the direction of rotation,clockwise,counterclockwise proportional difference did not have statistical significance(P>0.05).Conclusion Acrysof Toric IOL March observation indicated that the implant can efficiently and stably for correction of high myopia with cataract corneal astigmatism,the patients get better uncorrected distance visual acuity.But as a result of high myopia patients with capsular bag is larger,some patients may present the suspensory ligament relaxation,and simple astigmatism in cataract patients compared,Acrysof Toric IOL in the capsular bag rotational stability have certain difference.