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Updated: Jan 29, 2026
Measuring the Functional Abilities of Children Aged 3-6 Years Old with Observational Methods and Computer Tools
Published on: June 20, 2020
Incidence of eye problems in children aged 3-6 years during and after the COVID-19 pandemic
Peng Ye1, Ying Zhang2, Yunrong Fu2
1School of Preclinical Medicine, Chengdu University, Chengdu, Sichuan, China.
Insights
Eye problem incidence decreased in preschoolers after the COVID-19 pandemic. This study found lower rates of myopia, astigmatism, and anisometropia in 2023 compared to 2022.
Area of Science:
- Ophthalmology
- Pediatric Health
- Public Health
Background:
- Home confinement during COVID-19 increased eye problems in children.
- This study examines post-pandemic eye health trends in young children.
Purpose of the Study:
- To investigate changes in the incidence of eye problems in preschool children after the COVID-19 pandemic.
- To compare the prevalence of specific refractive errors between 2022 and 2023.
Main Methods:
- Retrospective analysis of vision screening data from 3-6 year olds in Southwestern China (2022 vs. 2023).
- Calculation and statistical comparison of standardized incidence rates for overall eye problems and specific conditions (myopia, hyperopia, astigmatism, anisometropia).
Main Results:
- Overall eye problem incidence decreased from 9.13% in 2022 to 8.78% in 2023.
- Significant reductions observed in myopia (0.84% to 0.60%), astigmatism (8.64% to 8.06%), and anisometropia (0.87% to 0.45%).
- Hyperopia incidence slightly increased (0.55% to 0.61%), while astigmatism remained the most common issue.
Conclusions:
- Post-pandemic eye problem incidence, including myopia, astigmatism, and anisometropia, decreased in preschool children.
- Astigmatism remains a primary concern, necessitating targeted interventions.
- Further research is needed to understand COVID-19's long-term impact on pediatric eye health.
Background:
Incidence of eye problems increased during the COVID-19 pandemic when home confinement measures were adopted. The aim of this study was to investigate the changes of incidence of eye problems after the ending of COVID-19 pandemic.
Methods:
Vision screening results were retrospectively extracted from the health examination results of children from Southwestern China who were aged 3-6 years in either 2022 or 2023. After interpretation of the vision screening results using an official standard, percentages of abnormal vision screening results were calculated and compared between year 2022 and 2023 using statistical software.
Results:
In all, vision screening results were extracted from 26396 children in 2022 and 31324 children in 2023. The standardized overall incidence of eye problems was 9.13% in 2022, and 8.78% in 2023. The standardized incidence of myopia, hyperopia, astigmatism, and anisometropia were 0.84%, 0.55%, 8.64%, and 0.87% in 2022, and 0.60%, 0.61%, 8.06%, 0.45% in 2023, respectively. Logistic regression showed that odds of having eye problems, myopia, astigmatism, or anisometropia were significantly lower in 2023.
Conclusion:
In the cohort of children aged 3-6 years, the overall incidence of eye problems and incidence of myopia, astigmatism and anisometropia was lower in 2023, together with higher incidence of hyperopia in 2023. Incidence of astigmatism was much higher than that of other types of eye problems. More efforts should be made to lower the incidence of astigmatism in pre-school children, as well as understand the underlying mechanism on the impact of COVID-19 on the eye health of pre-school children.
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