摘要
Abstract
AIM:To analyze the corneal morphological characteristics of school-age children,and provide reference for the examination of refractive errors,corneal lesions,and treatment in school-age children.
METHODS:Children aged 6-12 years in our hospital from March 2020 to June 2023 were included as the research objects,and they are divided into emmetropia group(-0.25 D≤SE≤+0.25 D)and myopia group(-6.00 D≤SE＜-0.25 D)according to spherical equivalent(SE).The flat curvature(K1),steep curvature(K2),mean curvature(Km),radius of curvature(Rm),white-to-white(WTW)and corneal central thickness(CCT)were measured by Pentacam anterior segment analyzer.The corneal morphological differences between the emmetropia group and myopia group,boys and girls and children of different ages were analyzed.
RESULTS:In the emmetropia group,the anterior corneal surface Km was 42.84±0.61 D,Rm was 7.85±0.15 mm,the posterior corneal surface Km was-6.23±0.04 D,Rm was 6.77±0.15 mm,WTW was 11.89±0.28 mm,CCT was 557.77±22.44 μm;in the myopia group,Km was 43.68±0.62 D,Rm was 7.72±0.16 mm,Km was-6.49±0.03 D,Rm was 6.64±0.17 mm,WTW was 12.17±0.27 mm,CCT was 553.24±22.23 μm.There was significant difference in corneal morphology between the emmetropia group and the myopia group(both P＜0.01).Correlation analysis showed that corneal morphology was significantly correlated with age and gender.
CONCLUSION:The corneal morphology of school-age children is not fixed,and the occurrence of myopia is not only related to the growth of axial length,but also significantly related to the changes of corneal morphology.关键词
学龄期儿童/角膜形态/Pentacam眼前节分析/年龄特征/性别特征Key words
school-age children/corneal morphology/Pentacam anterior segment analysis/age characteristics/gender characteristics
