Submitted for Publication: December 19, 2013; final revision received February 27, 2014; accepted March 9, 2014.
Published Online: July 10, 2014. doi:10.1001/jamaophthalmol.2014.1752.
Study concept and design: All authors.
Acquisition, analysis, or interpretation of data: Lou, Hu.
Drafting of the manuscript: Lou, Hu.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Lou, Hu.
Obtained funding: Ye.
Administrative, technical, or material support: Ye.
Study supervision: Zhang, Ye.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported by grant 81070756 from the Natural Science Foundation of China, by grant 2012BAI08B01 from the National Twelfth Five-Year Plan for Science and Technology Support of China, by grant NCET-11-0161 from the Program for New-Century Excellent Talents in Universities of China, by the Zhejiang Provincial Program for Cultivation of High-level Innovative Health Talents, by grant 2012C13023-2 from the Specialized Key Science and Technology Foundation of Zhejiang Provincial Science and Technology Department, and by grant 2011ZDA014 from the Zhejiang Provincial Key Project of Medicine and Health.
Role of the Sponsor: The funding source had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.