Trends in Myopia Development Among Primary and Secondary School Students During the COVID-19 Pandemic: A Large-Scale Cross-Sectional Study.
Front Public Health
; 10: 859285, 2022.
Article
in English
| MEDLINE | ID: covidwho-1785455
ABSTRACT
Objectives:
To evaluate myopia development among primary and secondary school students during the coronavirus 2019 (COVID-19) pandemic.Methods:
A cross-sectional study was conducted to evaluate the development of myopia among students in Shenzhen, China during the COVID-19 outbreak.Results:
The study included 1,472,957 and 1,573,824 students in 2019 and 2020, respectively. The prevalence of myopia was 46.9 and 50.5% in 2019 and 2020, respectively. The prevalence of myopia among students in the former Shenzhen Special Economic Zone (SEZ) was higher than that in areas outside the former Shenzhen SEZ (2019 47.0 vs. 43.7%; 2020 50.5 vs. 47.3%). The prevalence of myopia among girls was higher than that among boys (2019 50.4 vs. 44.0%; 2020 54.0 vs. 47.6%). The 50th percentile (P50) of spherical equivalent refraction (SER) in the right eye among girls was lower than that in boys. The prevalence of myopia continued to increase as the grade increased, with the greatest annual increase observed in Grades 2-5 (3.4-3.9%). The P50 of SER in the right eye of students decreased as the grade increased.Conclusions:
The prevalence of myopia among students increased during the COVID-19 pandemic, especially in primary school Grades 2-5.Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
COVID-19
/
Myopia
Type of study:
Experimental Studies
/
Observational study
/
Randomized controlled trials
Limits:
Female
/
Humans
/
Male
Language:
English
Journal:
Front Public Health
Year:
2022
Document Type:
Article
Affiliation country:
Fpubh.2022.859285
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