The Evolutionary Model of Mild-to-moderate Myopia in China
NCT02667509 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 852441
Last updated 2016-04-14
Summary
Myopia has emerged as a major health issue in east Asia, because of its increasingly high prevalence in the past few decades (now 80-90% in school-leavers), and because of the sight-threatening pathologies associated with high myopia, which now aff ects 10-20% of those completing secondary schooling in this part of the world. Similar, but less marked, changes are occurring in other parts of the world. The higher prevalence of myopia in east Asian cities seems to be associated with increasing educational pressures, combined with life-style changes, which have reduced the time children spend outside.
Conditions
- Refractive Error
Sponsors & Collaborators
-
Ministry of Health, China
collaborator OTHER_GOV -
Sun Yat-sen University
lead OTHER
Principal Investigators
-
Haotian Lin Lin, M.D., Ph.D · Zhongshan Ophthalmic Center, Sun Yat-sen University
-
Yizhi Liu, M.D., Ph.D · Zhongshan Ophthalmic Center, Sun Yat-sen University
-
Erping Long, M.D., Ph.D · Zhongshan Ophthalmic Center, Sun Yat-sen University
Eligibility
- Sex
- ALL
- Healthy Volunteers
- Yes
Timeline & Regulatory
- Start
- 2005-01-31
- Primary Completion
- 2015-10-31
- Completion
- 2015-10-31
Countries
- China
Study Locations
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