Lea Symbols视力表在42~78个月儿童视力检查中的重复测量可信度分析  

Test-Retest Reliability of the Lea Symbols Chart in Preschool Children Aged 42-78 Months

作　　者：宋磊 陈雪兰 陈丽娟[3] 胡建民[1] Lei Song;Xuelan Chen;Lijuan Chen;Jianmin Hu(Department of Ophthalmology,the Second Affiliated Hospital of Fujian Medical University,Fujian Province University Engineering Research Center of Assistive Technology for Visual Impairment,Quanzhou 362000,China;Department of Ophthalmology,Qilu Children's Hospital of Shandong University,Jinan 250000,China;Department of Medical Technology,Zhang Zhou Health Vocational College,Zhangzhou 363000,China)

机构地区：[1]福建医科大学附属第二医院眼科视障辅助技术福建省高校工程研究中心,泉州362000 [2]山东大学齐鲁儿童医院眼科,济南250000 [3]漳州卫生职业学院医学技术系,363000

出　　处：《中华眼视光学与视觉科学杂志》2019年第4期245-251,共7页Chinese Journal Of Optometry Ophthalmology And Visual Science

基　　金：国家卫生计生委-福建省卫生教育联合攻关计划(WKJ2016-2-12);泉州市高层次人才创新创业项目(2017Z006).

摘　　要：目的:探讨Lea Symbols视力表在学龄前儿童视力检查中的重复测量可信度。方法:横断面研究。2017年4-5月对泉州市泉港区实验幼儿园的250名42~78(61.9±10.3)个月的学龄前儿童进行全面的眼科检查,使用Lea Symbols视力表重复测量右、左眼的单眼远视力,采用LogMAR记录法记录视力值。采用Bland-Altman分析、加权Kappa检验、组内相关系数3种统计分析方法衡量2次测量之间的重复测量可信度。结果:3种分析方法均显示Lea Symbols视力表在学龄前儿童视力检查中的重复测量可信度较好,2次测量间视力的差值94.3%在1行以内,2次测量的视力值之间的相关性较高(r=0.753,P<0.001)。在139名屈光正常儿童中,2次测量的视力值(LogMAR)平均相差0.014。在139名屈光正常儿童中,视力与月龄的相关性是显著的,月龄越大视力越好(r第1次=-0.335,P<0.001;r第2次=-0.424,P<0.001);性别对可重复性没有影响(P=0.197)。结论:Lea Symbols视力表可用于中国42个月及以上学龄前儿童的视力检查,可以在临床视力检查中推广使用。Objective:To evaluate the repeatability of the Lea Symbols chart in vision examinations of preschool children.Methods:In this cross-sectional study,we included 250 children aged 42 through 78 months (61.9±10.3) from April to May 2017.All children completed comprehensive ophthalmological examinations and monocular assessment of visual acuity was performed in both eyes with the Lea Symbols chart.All visual acuity scores are presented in LogMAR units.Bland-Altman analysis,weighted Kappa test and correlation analysis were used to measure the reliability of repeated measurements between the two measurements.Results:The visual acuity (LogMAR) difference between test and retest thresholds was between ±0.10 in 94.3% of eyes.Correlation between test and retest thresholds was 0.753 (P<0.001). The mean difference in visual acuity (LogMAR) between test and retest was 0.014 in 139 preschool children without refractive errors.A significant relationship was found between age and visual acuity in 139 preschool children without refractive errors (rfirst=-0.335,P<0.001;rsecond=-0.424,P<0.001).Repeatability was not associated with gender (P=0.197).Conclusions:The Lea Symbols chart provides a repeatable measure of visual acuity in children 42 months and older.It is recommended for the clinical examination of children.

关 键 词：LEA Symbols视力表 学龄前儿童 视力 可重复性 

分 类 号：R770.4[医药卫生—眼科]