Refractive Error in Chinese Students
Study Details
Study Description
Brief Summary
This cohort study aimed to assess the change of refractive status in Chinese school children.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
Detailed Description
A cohort study was conducted in 96 primary and secondary schools in 16 districts of Tianjin from 2018 to 2020, including about 36452 people totally. The changes in myopia rate in 3 years were compared by a generalized estimation equation. The distribution of average equivalent spherical mirror and different regions and grades was evaluated by linear regression analysis, and the correlation between the equivalent spherical mirror and different gender, nationality, and age was evaluated.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Grade The changes in myopia rate in 3 years were compared by generalized estimation equation in different grades |
Other: outdoor time
This cohort study aimed to assess the change of refractive status in Chinese school children under different outdoor time
|
Outcome Measures
Primary Outcome Measures
- refractive error [change from baseline at 36 months]
The changes in refractive error were compared by generalized estimation equation.
- sex disparity [change from baseline at 36 months]
The changes in refractive error were compared between different sex
Eligibility Criteria
Criteria
Inclusion Criteria:
-
no concurrent eye disease
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age from 6 to 18 years old
Exclusion Criteria:
-
significant systemic illnesses
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ocular conditions
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congenital corneal diseases
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pterygium, keratoconus
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corneal degeneration or dystrophy
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media opacity, uveitis, glaucoma
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history of ocular surgery
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neurologic diseases
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retinal disease.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Tianjin Eye Hospital | Tianjin | China | 300020 |
Sponsors and Collaborators
- Tianjin Eye Hospital
Investigators
- Study Chair: Yan Wang, director, Tianjin Eye Hospital
Study Documents (Full-Text)
None provided.More Information
Publications
- Saw SM, Matsumura S, Hoang QV. Prevention and Management of Myopia and Myopic Pathology. Invest Ophthalmol Vis Sci. 2019 Feb 1;60(2):488-499. doi: 10.1167/iovs.18-25221.
- Wang J, Li Y, Musch DC, Wei N, Qi X, Ding G, Li X, Li J, Song L, Zhang Y, Ning Y, Zeng X, Hua N, Li S, Qian X. Progression of Myopia in School-Aged Children After COVID-19 Home Confinement. JAMA Ophthalmol. 2021 Mar 1;139(3):293-300. doi: 10.1001/jamaophthalmol.2020.6239.
- Wang W, Zhu L, Zheng S, Ji Y, Xiang Y, Lv B, Xiong L, Li Z, Yi S, Huang H, Zhang L, Liu F, Wan W, Hu K. Survey on the Progression of Myopia in Children and Adolescents in Chongqing During COVID-19 Pandemic. Front Public Health. 2021 Apr 28;9:646770. doi: 10.3389/fpubh.2021.646770. eCollection 2021.
- 2021022