China Children Eye Study
Recruiting
Observational Study
Axial Length
Myopia
Child Development
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Healthy Volunteers Welcome
You do not need to have the condition being studied to take part.
No Study Drug
Researchers observe your health over time — no experimental treatment is given.
At a Glance
- Age
- 3 – 18
- Sex
- Any
- Study type
- Observational
- Participants needed
- 30,000 (estimated)
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center · Other
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Answer a few quick questions to see if you may meet the eligibility requirements.
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About This Trial
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.
Trial Locations
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Eligibility Criteria
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 Criter…
Contacts