不同屈光不正类型学龄儿童眼球生物学参数分析

摘要

目的 分析不同屈光不正类型学龄儿童的眼生物学参数及其与屈光状态的关系.方法 选取2014年6月至2017年1月屈光不正学龄儿童72例(144眼),采用1％阿托品眼用凝胶散瞳,RM-8000A电脑验光仪验光测量等效球镜度,IOL-Master测量眼轴长度、角膜曲率、前房深度.结果 6～8岁组眼轴长度、前房深度均值低于9～12岁组,等效球镜度均值高于9～12岁组,差异有统计学意义(P<0.05);角膜曲率均值与9～12岁组差异无统计学意义(P>0.05).各不同屈光状态组,眼轴长度、前房深度与等效球镜度呈负相关(P<0.05),角膜曲率与等效球镜度无相关性(P>0.05).眼轴长度与角膜曲率、前房深度呈正相关(P<0.05).结论 眼轴长度是影响学龄儿童屈光状态的主要因素,学龄儿童随生长发育,眼轴长度增长,角膜曲率也发生协同变化,前房深度加深,共同参与屈光状态的变化.%Objective To analyze ocular biological parameters in school age children with different refractive errors, and to explore the relationship between ocular biological parameters and refractive status.Methods 72 patients (144 eyes) with refractive errors from June 2014 to January 2017 were selected, and were applied with 1％ atropine eye gel. Spherical equivalent was measured with RM-8000A auto-refractor, and axial length, corneal curvature, anterior chamber depth were measured with IOL-Master.Results Axial length, anterior chamber depth of 6～8 years old group was lower than that of 9～12 years old group, spherical equivalent degree was higher than 9～12 years old group, the difference was statistically significant (P<0.05). There was no statistical significance (P>0.05) in the mean corneal curvature between two groups. There was a negative correlation between the axial length and the anterior chamber depth in different refractive status groups (P<0.05), and there was no correlation between the corneal curvature and the equivalent spherical degree (P>0.05). The axial length was positively correlated with corneal curvature and anterior chamber depth (P<0.05). Conclusion The axial length is the main factor affecting the refractive status of school age children. With the growth and development of school age children, axial length elongate, corneal curvature also change, the depth of anterior chamber deepen, and the changes of refractive state are involved.