Association between sleep duration and myopia among Chinese children during the COVID-19 pandemic: A cross-sectional study

Huang, Luoming; Chen, Xuelan; Lin, Jiajia; Fan, Xiaoxuan; Chen, Ting; Yu, Yang; Chen, Jiaxin; Hu, Jianmin

doi:10.3389/fpubh.2022.1015138

Cited by 18 publications

(13 citation statements)

References 43 publications

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“…In our study, sleep duration of ≤8 hours increased the risk of fast myopia progression in children by 2.7 times. This was in line with previous study by Huang et al [32] , which revealed that children with sleep duration of more than or equal to 8 hours were less myopic and had less myopic SE in their univariate regression analysis, although after adjusting for several factors, the result was not signi cant. Studies conducted in Korea [33] and Japan [34] also showed that sleep duration was negatively associated with myopia.…”

Section: Sleep Duration and Its Impact On Myopia Progressionsupporting

confidence: 92%

Myopia Progression during COVID-19 Home Quarantine in Indonesia: A Retrospective Multicenter Cohort Study

Sitorus,

Caesarya,

Karfiati

et al. 2023

Preprint

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Purpose: To evaluate the impact of home quarantine on myopia progression in Indonesian children during COVID-19 pandemic. Methods: This multicenter retrospective cohort study included children aged 8-17 years old from 20 hospitals across 9 provinces in Indonesia. Medical records of children diagnosed with myopia and/or astigmatism were obtained and grouped to pre-pandemic (September 2019-March 2020) and pandemic periods (September 2021-May 2022). Patient demographics and spherical equivalents of refraction (SER) were collected. Direct or phone interviews were conducted with questions regarding the child’s screen time, outdoor activity time, break time in between gadget use, and sleep duration. Results: In total, 607 children were enrolled. There was a significant increase in SER progression (-0.97 ± 1.04 D, p<0.001). SER progression in Java-Bali was higher compared to others (-1.3± 1.18 D vs 0.57± 0.67 D, p<0.001). A total of 262 patients were interviewed. Younger age (OR: 2.52, 95% CI:[1.42-5.03], p = 0.004), female gender (OR: 2.16, 95% CI:[1.18-3.83], p = 0.011), screen time of ≥4 hours daily for leisure activities (OR: 1.95, 95% CI:[1.07-3.54], p = 0.028), ≤1 hour of time spent outdoor daily (OR: 1.89, 95% CI:[1.03-3.47], p = 0.047, and sleep duration of >8 hours (OR: 2.7, 95% CI:[1.46-4.99], p = 0.002) were significantly associated with fast myopia progression. Conclusion: Myopia progression was accelerated during COVID-19 home quarantine, especially in more urban area. Collaborative efforts should be made to address this current issue.

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Section: Sleep Duration and Its Impact On Myopia Progressionsupporting

confidence: 92%

Myopia Progression during COVID-19 Home Quarantine in Indonesia: A Retrospective Multicenter Cohort Study

Sitorus,

Caesarya,

Karfiati

et al. 2023

Preprint

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“…A Singaporean study found no independent association between sleep duration and myopia in primary school students [12]. This nding was also supported by other Chinese study aimed at school-aged children [13,14]. Jee et.…”

Section: Basic Characteristicssupporting

confidence: 55%

Association of sleep duration with different degrees of myopia in Chinese students: a cross-sectional study

Yin,

Liu,

et al. 2024

Preprint

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Background: At present, there are many studies on the relationship between sleep duration and myopia, but the results are not consistent. The aim of this study was to evaluate the association between sleep duration and the degree of myopia among Chinese primary students in grade 1 to grade 5. Materials and methods: This study was a cross-sectional study. From March to June2023, a total of 30653 students in grade 1 to grade 5 from 18 primary schools in Zhengzhou completed the questionnaire survey. The refractive error is divided into four grades: No-myopia (spherical equivalents (SE)＞-0.50 dioptres (D)), mild myopia (-3.00D＜SE≤-0.50D), moderate myopia (-6.00D＜SE≤-3.00D) and high myopia (≤-6.00D). Nighttime sleep duration was divided into two categories (＜8 h/d, ≥8 h/d). To evaluate the effect of sleep duration on myopia severity, stratified analyses were performed by sex and grades, with sleep duration ≥8 h/d as the reference for each stratum, and using ordinal logistic regression. Results: There are differences in age, gender, class, and sleep duration among primary school students with different degrees of myopia (all P＜0.001). Among boys, the risk of one degree increase in myopia with sleep duration＜8h/d is 12.291 (95%CI:11.280, 13.393) times higher than that with sleep duration ≥8h/d. Among girls, the risk of one degree increase in myopia with sleep duration＜8h/d is 12.709 (95%CI:11.611, 13.912) times higher than that with sleep duration ≥8h/d. In different grades, in grade 1, the risk of myopia increased by one grade with sleep duration ＜8h/d was 5.197 (95%CI:4.520, 5.975) times that with sleep duration ≥8h/d. In grade 2, the risk of myopia grade one increased with sleep duration ＜8h/d was 8.783 (95%CI:7.642, 10.094) times that with sleep duration ≥8h/d. In grade 3, the risk of myopia with sleep duration ＜8h/d was 11.834 (95%CI:10.278, 13.625) times that with sleep duration ≥8h/d. In grade 4, the risk of myopia grade one increased with sleep duration ＜8h/d was 13.567 (95%CI:11.793, 15.608) times that with sleep duration ≥8h/d. In grade 5, the risk of myopia grade one increased with sleep duration ＜8h/d was 16.280 (95%CI:13.981, 18.957) times that with sleep duration ≥8h/d. Conclusions: Our results suggest that sleep duration has a significant impact on the degree of myopia in Chinese primary school students. Students with sleep duration ＜8h/d had a faster decline in SE than those with sleep duration ≥8h/d, and the risk of high myopia was higher.

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“…In contrast, however, Li et al ( 15 ), in a cross-sectional study, did not find an association between sleep quality, duration and myopia in primary school children from Singapore. Huang et al ( 17 ) reported the relationship between sleep duration and myopia in Chinese children during the COVID-19 Epidemic, and a total of 1,140 children were included in the analysis, which showed that sleep duration was not associated with myopia after adjusting for age, gender, parental myopia, outdoor hours, and hours of continuous uninterrupted near work. The dose–response results of this survey indicated a non-linear relationship between sleep duration and the risk of myopia, with a threshold point of 8 h. The results of the multivariate logistic regression analysis ultimately showed that sleep duration below 8 h was associated with an increased risk of myopia.…”

Section: Discussionmentioning

confidence: 99%

Prevalence and associated factors of myopia among school students in Shenyang, China: a cross-sectional study

Zhang,

Sun,

et al. 2023

Front. Public Health

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BackgroundIn recent years, the prevalence of myopia has increased significantly and caused great concern. Nevertheless, an estimate of myopia in the student population in Shenyang, Liaoning Province, China is still lacking. This study aims to determine the prevalence of myopia among students in Shenyang and investigate the associated factors affecting myopia development.MethodsStandard logarithmic visual acuity chart and automatic computerized optometry under non-ciliary muscle paralysis were used to test the students’ naked visual acuity of their right and left eyes. The included students were organized to fill in questionnaires on WeChat to collect the factors affecting myopia.ResultsA total of 34,644 students with a median age of 11.9 years were examined, including 17,563 males and 17,081 females. The overall prevalence of myopia was 60%, with a prevalence of 45% for mild myopia, 13% for moderate myopia, and 1.9% for high myopia. The sex, high educational stage, family history of myopia, doing homework after school or reading and writing for more than 2 h were associated with a higher risk of myopia, while doing eye exercises twice a day or more, going outdoors during recess, reading and writing with eyes more than one foot from books, and sleeping more than 8 h a day were associated factors for preventing myopia. The associated factors influencing myopia vary among different subgroups.ConclusionThe prevalence of myopia in Shenyang is at a high level. In addition to sex, high educational stage and genetic factors, environmental factors including length of eye usage, eye exercises, outdoor activities, eye working distance, and sleep duration are associated with myopia prevalence. Therefore, it is recommended that the occurrence and development of myopia can be prevented by controlling the above environmental factors.

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Association between sleep duration and myopia among Chinese children during the COVID-19 pandemic: A cross-sectional study

Cited by 18 publications

References 43 publications

Myopia Progression during COVID-19 Home Quarantine in Indonesia: A Retrospective Multicenter Cohort Study

Myopia Progression during COVID-19 Home Quarantine in Indonesia: A Retrospective Multicenter Cohort Study

Association of sleep duration with different degrees of myopia in Chinese students: a cross-sectional study

Prevalence and associated factors of myopia among school students in Shenyang, China: a cross-sectional study

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