Myopia incidence and lifestyle changes among school children during the COVID-19 pandemic: a population-based prospective study

BackgroundThe impacts of social restrictions for COVID-19 on children’s vision and lifestyle remain unknown.AimsTo investigate myopia incidence, spherical equivalent refraction (SER) and lifestyle changes among schoolchildren during the COVID-19 pandemic.MethodsTwo separate longitudinal cohorts of c...

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Vydané v:British journal of ophthalmology Ročník 106; číslo 12; s. 1772 - 1778
Hlavní autori: Zhang, Xiujuan, Cheung, Stephanie S L, Chan, Hei-Nga, Zhang, Yuzhou, Wang, Yu Meng, Yip, Benjamin H, Kam, Ka Wai, Yu, Marco, Cheng, Ching-Yu, Young, Alvin L, Kwan, Mike Y W, Ip, Patrick, Chong, Kelvin Kam-Lung, Tham, Clement C, Chen, Li Jia, Pang, Chi-Pui, Yam, Jason C S
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: BMA House, Tavistock Square, London, WC1H 9JR BMJ Publishing Group Ltd 01.12.2022
BMJ Publishing Group LTD
BMJ Publishing Group
Predmet:
Age
Biometrics
Body mass index
Child health (paediatrics)
Clinical Science
Coronaviruses
COVID-19
epidemiology
Lifestyles
Myopia
Outdoor activities
Pandemics
Pediatrics
Population
Population-based studies
Quarantine
Questionnaires
Response rates
School closures
Screen time
Hong Kong China
Japan
Germany
ISSN:0007-1161, 1468-2079, 1468-2079
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Shrnutí:BackgroundThe impacts of social restrictions for COVID-19 on children’s vision and lifestyle remain unknown.AimsTo investigate myopia incidence, spherical equivalent refraction (SER) and lifestyle changes among schoolchildren during the COVID-19 pandemic.MethodsTwo separate longitudinal cohorts of children aged 6–8 years in Hong Kong were included. The COVID-19 cohort was recruited at the beginning of the COVID-19 outbreak, whereas the pre-COVID-19 cohort was recruited before the COVID-19 pandemic. All children received ocular examinations, and answered a standardised questionnaire relating to their lifestyle, including time spent on outdoor activities and near work, both at baseline and at follow-up visits.ResultsA total of 1793 subjects were recruited, of whom 709 children comprised the COVID-19 cohort with 7.89±2.30 months of follow-up, and 1084 children comprised the pre-COVID-19 cohort with 37.54±3.12 months of follow-up. The overall incidence was 19.44% in the COVID-19 cohort, and 36.57% in pre-COVID-19 cohort. During the COVID-19 pandemic, the change in SER and axial length was –0.50±0.51 D and 0.29±0.35 mm, respectively; the time spent on outdoor activities decreased from 1.27±1.12 to 0.41±0.90 hours/day (p<0.001), while screen time increased from 2.45±2.32 to 6.89±4.42 hours/day (p<0.001).ConclusionsWe showed a potential increase in myopia incidence, significant decrease in outdoor time and increase in screen time among schoolchildren in Hong Kong during the COVID-19 pandemic. Our results serve to warn eye care professionals, and also policy makers, educators and parents, that collective efforts are needed to prevent childhood myopia—a potential public health crisis as a result of COVID-19.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0007-1161
1468-2079
1468-2079
DOI:10.1136/bjophthalmol-2021-319307