摘要
目的:分析不同年龄段儿童的屈光状态、眼生物学参数及其之间的相关关系。方法:横断面研究。选取2016-01/2017-10来门诊就诊的3~12岁儿童1138名2276眼,记录等效球镜度、眼轴长度、角膜曲率、角膜厚度等。结果:纳入的1138名儿童的平均屈光度为-0.67±2.66D,平均角膜曲率为43.37±1.72D,平均眼轴长度为23.65±1.41mm。其中,平均角膜曲率男生为42.98±1.86D,女生为43.81±1.42D;平均眼轴长度男生为23.94±1.36mm,女生为23.32±1.40mm;平均角膜中心厚度男生为541.83±33.73μm,女生为536.10±31.49μm;平均角膜散光男生为1.53±0.99D,女生为1.65±1.02D,男女组间各指标差异均有统计学意义(P<0.05)。3~6岁组眼轴长度、角膜中心厚度均低于其余年龄组,等效球镜度、角膜散光均高于其他年龄组(P<0.05)。眼轴长度及角膜中心厚度与年龄呈正相关。轴率比与年龄呈正相关,与等效球镜度呈负相关。结论:眼轴长度及角膜曲率是影响儿童屈光状态的主要因素,随着儿童眼轴长度增长,角膜曲率也发生一定变化,轴率比可以评测这种改变。
·AIM:To analyze the refraction status,ocular biological parameters and the relationship between them in 3-12 years old children.·METHODS:Totally 1138(2276 eyes)children aged 3-12 years old were enrolled in this study from January 2016 to October 2017.Equivalent spherical degree,axial length,corneal curvature and corneal thickness were measured.·RESULTS:The average spherical diopter of 1138 children is-0.67±2.66D,the average corneal curvature is 43.37±1.72D,and the axial length is 23.65±1.41mm.The average corneal curvature of boys is 42.98±1.86D and that of girls is 43.81±1.42D.The axial length of boys is 23.94±1.36 mm and that of girls is 23.32±1.40mm.The central corneal thickness of boys is 541.83±33.73μm and that of girls is 536.10±31.49μm.The corneal astigmatism of boys was 1.53±0.99D and that of girls is 1.65±1.02D.There is a significant difference between boys and girls.Axial length and central corneal thickness are lower in 3-6 age group than those in other age groups.Equivalent diopter and corneal astigmatism are higher than those in other age groups(P<0.05).Axial length and central corneal thickness are in positive correction with age.Axial ratio is positively correlated with age and negatively correlated with spherical equivalent.·CONCLUSION:The axial length and corneal curvature are the main factors affecting the refraction status in children.With the growth axial length,the curvature of cornea also changes to some extent.AL/CR can predict this change.
作者
张学辉
艾欣
李盼
阴萌丽
叶璐
Xue-Hui Zhang;Xin Ai;Pan Li;Meng-Li Yin;Lu Ye(Department of Optometry Clinic,Xi'an First Hospital,Shaanxi Institute of Ophthalmology,Key Lab of Ophthalmology,Clinical Center for Ophthalmology,Xi'an 710002,Shaanxi Province,China;Department of Ophthalmology,the Fourth Hospital of Xi'an,Xi'an 710004,Shaanxi Province,China)
出处
《国际眼科杂志》
CAS
北大核心
2020年第8期1409-1412,共4页
International Eye Science
基金
陕西省重点研发项目(No.2018SF-066)。
关键词
角膜曲率
近视
横断面研究
轴率比
corneal curvature
myopia
cross-sectional study
AL/CR
