Cross-sectional associations of nighttime sleep and daytime nap duration with myopia in preschool children: the mediating role of body mass index.

Xiumei Chen, Dan Liu, Wei Du, Changhua Wu

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In one paragraph

Article in Frontiers in medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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5 · Who and what money

Authors and funding

4 authors.

Xiumei ChenDepartment of Child Health Care, Shaoxing Maternity and Child Health Care Hospital, Maternity and Child Health Care Hospital Affiliated to Shaoxing University, Shaoxing, Zhejiang, China.

Dan LiuDepartment of Child Health Care, Shaoxing Maternity and Child Health Care Hospital, Maternity and Child Health Care Hospital Affiliated to Shaoxing University, Shaoxing, Zhejiang, China.

Wei DuDepartment of Ophthalmology, Shaoxing Maternity and Child Health Care Hospital, Maternity and Child Health Care Hospital Affiliated to Shaoxing University, Shaoxing, Zhejiang, China.

Changhua WuDepartment of Child Health Care, Shaoxing Maternity and Child Health Care Hospital, Maternity and Child Health Care Hospital Affiliated to Shaoxing University, Shaoxing, Zhejiang, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: To investigate the associations of nighttime sleep and daytime nap duration with myopia in preschool children, and to examine the mediating role of body mass index (BMI). Methods: This cross-sectional study included 695 children aged 3-7 years. Sleep duration, demographics, family factors, and lifestyle were assessed via a self-administered questionnaire. Ophthalmic examinations followed national myopia screening guidelines. Multivariate logistic regression, restricted cubic splines, and mediation analysis were used to evaluate the associations and the mediating effect of BMI. Results: The prevalence of myopia was 21.29%. After adjusting for confounders, both daytime nap duration [OR = 0.87, ( Conclusion: Both nighttime sleep and daytime nap duration were inversely associated with myopia risk in preschool children, with BMI playing a partial mediating role. Ensuring adequate nighttime sleep and appropriate daytime napping may represent an effective strategy for early myopia prevention.

Indexed as

body mass indexdaytime nap durationmyopianighttime sleep durationpreschool children

Identifiers

PMID42482891

DOI10.3389/fmed.2026.1840892

PMCPMC13386222

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LicenceCC BY

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.