China Children Eye Study

NCT05770661 · tracked via the Priya Life Science China tracker

Sponsor

Shanghai Eye Disease Prevention and Treatment Center

Phase

Observational

Started

2023-03-10

Last updated

2026-08-07

Condition(s) studied

Axial LengthMyopiaChild Development

Study 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

Sex

ALL

Min age

3 Years

Max age

18 Years

Healthy volunteers

Accepted

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

Primary outcome measure(s)

Axial length — 2023-2026
Axial length in millimeter was examined by IOL Master

Trial sites (2)

Facility	City	Region	Status
Shanghai Eye Disease Prevention & Treatment Center	Shanghai	Shanghai Municipality	Recruiting
Shanghai Eye Disease Prevention and Treatment Center	Shanghai	China	Recruiting

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Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT05770661 on ClinicalTrials.gov ↗ ← All trials in China