Visual acuity and corrected visual acuity of children and adolescents in Shanghai City

ZHANG Bo; QI Ziyi; WANG Jingjing; LIU Sichen; YANG Jinliuxing; CHEN Jun; DU Linlin; HE Xiangui; GAO Wei

doi:10.16835/j.cnki.1000-9817.2025001

Volume 46 Issue 1

Jan. 2025

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ZHANG Bo, QI Ziyi, WANG Jingjing, LIU Sichen, YANG Jinliuxing, CHEN Jun, DU Linlin, HE Xiangui, GAO Wei. Visual acuity and corrected visual acuity of children and adolescents in Shanghai City[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2025, 46(1): 24-28. doi: 10.16835/j.cnki.1000-9817.2025001

Citation:

ZHANG Bo, QI Ziyi, WANG Jingjing, LIU Sichen, YANG Jinliuxing, CHEN Jun, DU Linlin, HE Xiangui, GAO Wei. Visual acuity and corrected visual acuity of children and adolescents in Shanghai City[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2025, 46(1): 24-28. doi: 10.16835/j.cnki.1000-9817.2025001

Citation:

ZHANG Bo, QI Ziyi, WANG Jingjing, LIU Sichen, YANG Jinliuxing, CHEN Jun, DU Linlin, HE Xiangui, GAO Wei. Visual acuity and corrected visual acuity of children and adolescents in Shanghai City[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2025, 46(1): 24-28. doi: 10.16835/j.cnki.1000-9817.2025001

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Visual acuity and corrected visual acuity of children and adolescents in Shanghai City

doi: 10.16835/j.cnki.1000-9817.2025001

ZHANG Bo¹,
QI Ziyi^{1, 2},
WANG Jingjing¹,
LIU Sichen¹,
YANG Jinliuxing¹,
CHEN Jun¹,
DU Linlin¹,
HE Xiangui^{1, 2},
GAO Wei^{1
,
,}

1.
Department of Clinical Research, Shanghai Eye Disease Prevention and Treatment Center/Shanghai Eye Hospital, School of Medicine, Tongji University, Shanghai (200331), China

Received Date: 2024-07-18
Rev Recd Date: 2024-10-24

Available Online: 2025-01-25

Publish Date: 2025-01-25

Abstract

Abstract

Objective To investigate the visual acuity and correction conditions of children and adolescents in Shanghai, so as to provide a scientific basis for developing intervention measures to prevent myopia and protect vision among children and adolescents. Methods From October to December 2022, a stratified cluster random sampling survey was conducted, involving 47 034 students from 16 municipal districts in Shanghai, covering kindergartens (≥5 years), primary schools, middle schools, general high schools and vocational high schools. According to the Guidelines for Screening Refractive Errors in Primary and Secondary School Students, the Standard Logarithmic Visual acuity Chart was used to examine naked vision and corrected vision of students, and general information was collected. The distribution and severity of visual impairment in different age groups were analyzed, and χ² tests and multivariate Logistic regression were used to explore factors associated with visual impairment. Results The detection rate of visual impairment among children and adolescents was 76.2%, with a higher rate among females (78.8%) than males (73.8%), higher among Han ethic students (76.2%) than minority students (71.2%), and higher among urban students (76.7%) than suburban students (75.8%), all with statistically significant differences (χ²=162.6, 10.4, 5.5, P < 0.05). The rate of visual impairment initially decreased and then increased with age, reaching its lowest at age 7 (53.8%) and peaking at age 17 (89.6%) (χ_trend²=3 467.0, P < 0.05). Severe visual impairment accounted for the majority, at 56.6%, and there was a positive correlation between the severity of visual impairment and age among children and adolescents (r=0.45, P < 0.05). Multivariate Logistic regression showed that age, BMI, gender, ethnicity and urban-suburban status were associated with visual impairment (OR=1.18, 1.01, 1.38, 0.79, 0.88, P < 0.05). Among those with moderate to severe visual impairment, the rate of spectacle lens usage was 62.8%, yet only 44.8% of those who used spectacle lens had fully corrected visual acuity. Females (64.9%) had higher spectacle lens usage rates than males (60.6%), and general high school students had the highest spectacle lens usage (83.9%), and there were statistically significant differences in gender and academic stages (χ²=57.7, 4 592.8, P < 0.05). Conclusions The rate of spectacle lens usage among students with moderate to severe visual impairment is relatively low, and even after using spectacle lens, some students still do not achieve adequate corrected visual acuity. Efforts should focus on enhancing public awareness of eye health and refractive correction and improving the accessibility of related health services.
- Vision, low,
- Visual correction,
- Regression anlysis,
- Child,
- Adolescent

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References(27)

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