Guangzhou Outdoor Activity Longitudinal Study
NCT00848900 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 2000
Last updated 2010-11-22
Summary
The purpose of this study is to assess whether outdoor activities are effective in preventing the development and progression of juvenile-onset myopia in Chinese children.
Conditions
- Myopia
Interventions
- BEHAVIORAL
-
Outdoor activity
Adding 1 hour outdoor time into school curricula
Sponsors & Collaborators
-
Sun Yat-sen University
lead OTHER
Principal Investigators
-
Mingguang He, PhD, MD · Zhongshan Ophthalmic Center, Sun Yat-sen University
Study Design
- Allocation
- RANDOMIZED
- Purpose
- PREVENTION
- Masking
- NONE
- Model
- SINGLE_GROUP
Eligibility
- Sex
- ALL
- Healthy Volunteers
- No
Timeline & Regulatory
- Start
- 2009-04-30
- Primary Completion
- 2012-04-30
- Completion
- 2012-07-31
Countries
- China
Study Locations
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