Refraction and Ocular Biometry of Preschool Children in Shanghai, China
Joint Authors
Wang, Bingjie
Qu, Xiaomei
Zhu, Jianfeng
He, Xiangui
Zhang, Luoli
You, Xiaofang
Shi, Huijing
Tan, Hui
Zou, Hai-dong
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-05
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Purpose.
To investigate the refraction and ocular biometry characteristics and to examine the prevalence of refractive errors in preschool children aged 3 to 6 years in Shanghai, China.
Methods.
A school-based cross-sectional study was conducted in Jiading and Xuhui District, Shanghai, in 2013.
We randomly selected 7 kindergartens in Jiading District and 10 kindergartens in Xuhui District, with a probability proportionate to size.
The children underwent comprehensive eye examinations, including cycloplegic refraction and biometric measurements.
Myopia, hyperopia, astigmatism were defined as spherical equivalent (SE) ≤ −0.50 D, SE ≥ +2.00 D, and cylindrical diopters ≤ −1.00 D.
Results.
The mean SE for 3- to 6-year-old children was +1.20 D (standard deviation [SD] 1.05), and the mean axial length (AL) was 22.29 mm (SD 0.73).
The overall prevalence of myopia and astigmatism was 3.7% and 18.3%, respectively.
No difference in prevalence of astigmatism was found across age groups.
There was a statistically significant association between lower cylindrical diopters and higher spherical diopters (Spearman’s correlation: −0.21, P<0.001).
Conclusion.
Chinese children aged 3 to 6 years in the Shanghai area were mostly mildly hyperopic, with a low prevalence of myopia.
Refractive astigmatism for children may be relatively stable throughout the preschool stage.
Astigmatism was significantly associated with refractive error.
American Psychological Association (APA)
Zhang, Luoli& He, Xiangui& Qu, Xiaomei& You, Xiaofang& Wang, Bingjie& Shi, Huijing…[et al.]. 2018. Refraction and Ocular Biometry of Preschool Children in Shanghai, China. Journal of Ophthalmology،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1196643
Modern Language Association (MLA)
Zhang, Luoli…[et al.]. Refraction and Ocular Biometry of Preschool Children in Shanghai, China. Journal of Ophthalmology No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1196643
American Medical Association (AMA)
Zhang, Luoli& He, Xiangui& Qu, Xiaomei& You, Xiaofang& Wang, Bingjie& Shi, Huijing…[et al.]. Refraction and Ocular Biometry of Preschool Children in Shanghai, China. Journal of Ophthalmology. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1196643
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1196643