Ireland
--:--IST
Recruiting Observational

China Children Eye Study

NCT05770661 · tracked via the Priya Life Science China tracker
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)

FacilityCityRegionStatus
Shanghai Eye Disease Prevention & Treatment Center Shanghai Shanghai Municipality Recruiting
Shanghai Eye Disease Prevention and Treatment Center Shanghai China Recruiting
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