Characteristics of refractive development in children aged 4 months to 8 years in urban China: A retrospective screening analysis

Author:

Yan Yarong12ORCID,Xia Xuewen3,Zhang Qinghui3,Li Xuan124ORCID

Affiliation:

1. Clinical College of Ophthalmology Tianjin Medical University Tianjin China

2. Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Visual Science Tianjin Eye Institute Tianjin China

3. Beijing Daxing Maternal and Child Care Hospital Beijing China

4. Affiliated Eye Hospital Nankai University Tianjin China

Abstract

AbstractPurposeTo conduct a large retrospective study of screening refractive error in young children.MethodsThis retrospective study included children aged from 4 months to 8 years in Daxing District, Beijing, who underwent refractive examinations without cycloplegia. It included a cross‐sectional assessment of refractive error screening for all children, and a longitudinal component for a subgroup with data available for two to five visits.ResultsA total of 14,987 children were included in the cross‐sectional study. In the group <1 year of age, the percentage of children with a spherical equivalent (SE) >+2.00 D or with cylinder <−1.50 D was 15.25% and 33.24%, respectively. These were significantly higher than for the 1‐ to 4‐year‐old group (SE 8.1% higher, cylinder 13.2% higher) (χ2 = 53.57, p < 0.001; χ2 = 790.39, p < 0.001). Furthermore, 34.83% of children in the 0‐year‐old group had amblyopia risk factors (ARFs). In the 4‐year‐old group, boys had a significantly longer axial length (AL) than girls (differences in the right and left eyes were 0.53 and 0.56 mm, respectively; z = 5.48 p < 0.001, z = 5.80, p < 0.001). AL increased with age, while the AL difference between boys and girls remained stable at 4–8 years of age. The percentage of children aged 5–8 years with myopia in 2020–2021 was significantly higher than that in 2018–2019 (H = 12.44, p = 0.006). In the longitudinal study of 4406 children (up to 12‐month follow‐up), annual changes in SE were −0.27, −0.06, 0.19 and 0.13 D between 0 and 3 years, and −0.38, −0.58, −0.70 and −0.75 D between 5 and 8 years.ConclusionsChildren's refractive error varied significantly from ages 4 months to 1 year, with a high proportion having ARFs. Children aged 5–8 years showed a trend towards myopia. The prevalence of myopia in the cross‐sectional analysis in 2020–2021 was greater than in 2018–2019. Screening refraction changed minimally over a 12‐month period for children aged 1–3 years, but became more myopic for children aged 5–8 years.

Funder

National Natural Science Foundation of China

Publisher

Wiley

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3