RecruitingNot Applicable

China Axial Length Study

China30,000 participantsStarted 2023-03-10

Plain-language 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.

Who can participate

Age range3 Years – 18 Years

SexALL

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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * 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 Criteria: * Mental diseases, unable to cooperate to complete the eye assessment * Ophthalmic diseases, inability to cooperate to complete the inspection

What they're measuring

Axial length

Timeframe: 2023-2026

Trial details

NCT IDNCT05770661

SponsorShanghai Eye Disease Prevention and Treatment Center

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2026-12-31

Contact for this trial

Xun Xu, MD

021-53555032 drxuxun@sjtu.edu.cn

View on ClinicalTrials.gov More Axial Length trials