Guangzhou Outdoor Activity Longitudinal Study
Sponsor
Sun Yat-sen University (Other)
Overall Status
Unknown status
CT.gov ID
NCT00848900
Collaborator
(none)
2,000
1
2
39
51.3
Study Details
Study Description
Brief 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.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Detailed Description
-
To determine if increased engagement in outdoor activities reduces the development and progression of myopia in Chinese school children.
-
To identify the risk factors associated with the development and progression of juvenile-onset myopia.
-
To characterize the interaction between refractive error and education.
Study Design
Study Type:
Interventional
Anticipated Enrollment
:
2000 participants
Allocation:
Randomized
Intervention Model:
Single Group Assignment
Masking:
None (Open Label)
Primary Purpose:
Prevention
Official Title:
A Controlled Clinical Trial of the Effect of Increases Time Outdoors in the Prevention of Juvenile-onset Myopia in Chinese Children
Study Start Date
:
Apr 1, 2009
Anticipated Primary Completion Date
:
Apr 1, 2012
Anticipated Study Completion Date
:
Jul 1, 2012
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| No Intervention: Control
|
|
| Experimental: Outdoor activity Adding 1 hour outdoor time into school curricula |
Behavioral: Outdoor activity
Adding 1 hour outdoor time into school curricula
|
Outcome Measures
Primary Outcome Measures
- Cycloplegic refraction [1 year]
Secondary Outcome Measures
- Visual acuity [6 months]
Eligibility Criteria
Criteria
Ages Eligible for Study:
N/A
and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
- All the students in Grade 1
Exclusion Criteria:
- No
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Zhongshan Ophthalmic Center | Guangzhou | Guangdong | China | 510060 |
Sponsors and Collaborators
- Sun Yat-sen University
Investigators
- Principal Investigator: Mingguang He, PhD, MD, Zhongshan Ophthalmic Center, Sun Yat-sen University
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.Responsible Party:
,
,
ClinicalTrials.gov Identifier:
NCT00848900
Other Study ID Numbers:
- GOAL2009
First Posted:
Feb 20, 2009
Last Update Posted:
Nov 22, 2010
Last Verified:
Oct 1, 2010
Additional relevant MeSH terms: