RecruitingNCT05770661
China Axial Length Study
Axial Length Study of Children and Adolescents in Ten Provinces of China
Sponsor
Shanghai Eye Disease Prevention and Treatment Center
Enrollment
30,000 participants
Start Date
Mar 10, 2023
Study Type
OBSERVATIONAL
Conditions
Summary
The primary objective of this multi-center, observational study is to establish the reference ranges of axial length in Chinese children and adolescents. 30,000 children aged 3-18 years were examined with cycloplegia to collect their ocular parameters and were all followed up for three years with annual visits.
Eligibility
Min Age: 3 YearsMax Age: 18 Years
Inclusion Criteria3
- Aged 3 to 18 years
- Have been lived in the research areas for at least one year, and will not move to other places in the following two years
- Parents or guardians sign an informed consent form, and children over 6 years old need oral consent to participate
Exclusion Criteria2
- Mental diseases, unable to cooperate to complete the eye assessment
- Ophthalmic diseases, inability to cooperate to complete the inspection
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Locations(2)
View Full Details on ClinicalTrials.gov
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NCT05770661
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