青少年屈光不正眼屈光度与角膜曲率及眼轴的相关性  

Correlation among the diopter,corneal curvature and axial length in adolescent with ametropia

作　　者：李娟[1] 曾锦[1] 崔颖[1] 谢文娟[1] 廖伟雄[1] 欧碧群[1] 

机构地区：[1]广东省人民医院,广州510080

出　　处：《新医学》2015年第10期668-670,共3页Journal of New Medicine

基　　金：广东省科技计划项目(2013B021800185);广东省科技第一批企业研发与升级改造项目(2013B021800178)

摘　　要：目的探讨屈光不正青少年角膜曲率、眼轴与屈光度的关系。方法选取屈光不正患者43例82眼。按等效球镜度分成2组:远视组(21例41眼)、近视组(22例41眼)。测量其屈光度、角膜水平曲率半径、角膜垂直曲率半径及眼轴,并对其进行统计学分析。结果 2组屈光不正患者角膜水平曲率半径、角膜垂直曲率半径、眼轴及眼轴/角膜曲率半径比较,差异有统计学意义(P<0.05)。2组屈光不正患者屈光度与眼轴及眼轴/角膜曲率半径均具有线性相关关系(r远视组=-0.544,-0.310;r近视组=-0.558,-0.790,P<0.05)。2组屈光不正患者眼轴与角膜水平曲率半径及角膜垂直曲率半径均具有线性相关关系(r远视组=0.572,0.668;r近视组=0.587,0.551,P<0.05)。2组屈光不正患者角膜水平曲率半径与角膜垂直曲率半径均具有线性相关关系(r远视组=0.937,r近视组=0.970,P<0.05)。结论屈光不正青少年屈光度与角膜曲率及眼轴长度密切相关,眼轴长度是近视形成的主要因素,眼轴/角膜曲率半径是监控近视进展的敏感指标。Objective To investigate the correlation among the corneal curvature,axial length,and diopter in the adolescents with ametropia. Methods Forty three teenagers diagnosed with ametropia（ 82 eyes）were selected in this study. All participants were divided into the hyperopia（ n = 21,41 eyes） and myopia（ n = 22,41 eyes） groups according to the spherical equivalent（ SE）. The diopter,radii of horizontal and vertical corneal curvature and axial length were measured and statistically compared between two groups. Results The radii of horizontal and vertical corneal curvature,axial length and axial length / radius of corneal curvature significantly differed between two groups（ all P〈0. 05）. In both groups,the diopter showed linear correlation with the axial length and axial length / radius of corneal curvature（ rHyperopia=- 0. 544 and- 0. 310;rMyopia=- 0. 558 and 0. 790,both P〈0. 05）. Linear correlation was equally observed among the axial length and radii of horizontal and vertical corneal curvature in two groups（ rHyperopia= 0. 572 and 0. 668; rMyopia= 0. 587 and 0. 551,both P〈0. 05）. The radius of horizontal corneal curvature had linear correlation with that of vertical corneal curvature in both groups（ rHyperopia= 0. 937,rMyopia= 0. 970,both P〈0. 05）. Conclusions In the adolescents with ametropia,the diopter was closely correlated with the corneal curvature and axial length. The axial length was the main factor of the incidence of myopia. The axial length / radius of corneal curvature was a sensitive indicator to monitor myopic progression

关 键 词：屈光不正 眼轴 角膜曲率 屈光度 

分 类 号：R778.1[医药卫生—眼科]