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Axial Length Study of Children and Adolescents in Ten Provinces of China
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.
Age
3 - 18 years
Sex
ALL
Healthy Volunteers
Yes
Shanghai Eye Disease Prevention & Treatment Center
Shanghai, Shanghai Municipality, China
Shanghai Eye Disease Prevention and Treatment Center
Shanghai, China
Start Date
March 10, 2023
Primary Completion Date
December 31, 2026
Completion Date
December 31, 2026
Last Updated
December 18, 2025
30,000
ESTIMATED participants
Lead Sponsor
Shanghai Eye Disease Prevention and Treatment Center
Collaborators
Data Source & Attribution
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