Status:
ENROLLING_BY_INVITATION
The Beijing Childhood Eye Study
Lead Sponsor:
Beijing Tongren Hospital
Conditions:
Myopia
Eligibility:
All Genders
6-12 years
Brief Summary
Axial myopia has emerged as the leading cause of irreversible vision loss in East Asia, driven by its progression to sight-threatening complications including myopic macular degeneration, retinal deta...
Detailed Description
This is a prospective epidemiological cohort study, recruiting students in grades 1-3 in primary school for myopia. Through stratified cluster random sampling, among aii the primary schools in Dongche...
Eligibility Criteria
Inclusion
- 1) Currently enrolled students in grades 1-3 of the selected primary schools, in good health, with normal ocular appearance. 2) No ocular diseases, no strabismus, ocular trauma, or history of intraocular surgery, with unaided visual acuity of 20/20 or better. 3) Parental and student consent to participate in the survey and signed informed consent form.
Exclusion
- 1) Not currently enrolled in grades 1-3 of a primary school. 2) Students with pre-existing strabismus, other ocular diseases, or a history of ocular surgery at baseline, or those allergic to cycloplegic eyedrops. 3) Students unable to continue studying at their current school for more than three years from the baseline, including those who transfer to another school or withdraw from the study; 4) parental or student disagreement with participation in the survey.
Key Trial Info
Start Date :
January 1 2020
Trial Type :
OBSERVATIONAL
Allocation :
ESTIMATED
End Date :
September 1 2025
Estimated Enrollment :
3760 Patients enrolled
Trial Details
Trial ID
NCT06931444
Start Date
January 1 2020
End Date
September 1 2025
Last Update
April 17 2025
Active Locations (1)
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1
Beijing Tongren hospital
Beijing, Beijing Municipality, China, 100083