Refractive Errors Clinical Trial
Official title:
The Associations of High Academic Performance With Childhood Ametropia Prevalence and Myopia Progression
Refractive errors constitute the leading cause of visual disability worldwide and that myopia progresses dramatically when students reach school age. Studies from different countries have reported inconsistent associations between educational outcomes and refractive errors. Therefore, our study aimed to assess the associations of high academic performance with ametropia prevalence and myopia progression in Chinese schoolchildren base on a multicohort observational design.
| Status | Recruiting |
| Enrollment | 10000 |
| Est. completion date | December 1, 2020 |
| Est. primary completion date | June 30, 2019 |
| Accepts healthy volunteers | |
| Gender | All |
| Age group | 6 Years to 15 Years |
| Eligibility |
Inclusion Criteria: - schoolchildren in the 1st to 9th grades Exclusion Criteria: - schoolchildren unwilling to participate - had a history of wearing rigid contact lenses, medical treatment or diseases that could cause poor vision or negatively affect the academic outcomes - with unreliable auto-refraction values |
| Country | Name | City | State |
|---|---|---|---|
| China | Zhognshan Ophthalmic Center, Sun Yat-sen University | Guangzhou | Guangdong |
| Lead Sponsor | Collaborator |
|---|---|
| Sun Yat-sen University |
China,
| Type | Measure | Description | Time frame | Safety issue |
|---|---|---|---|---|
| Primary | the changes of spherical equivalent refractive (RSE) | A multi-linear regression was used. | up to 3 years |
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