Published Online: November 14, 2013. doi:10.1001/jamaophthalmol.2013.5356.
Study concept and design: Chuang, Greenberg.
Acquisition of data: Chuang, Chen.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Chuang, Chen.
Critical revision of the manuscript for important intellectual content: Chuang, Chan, Margo, Greenberg.
Statistical analysis: Chuang, Chen, Margo.
Obtained funding: Chuang.
Administrative, technical, or material support: Chan, Greenberg.
Study supervision: Margo, Greenberg.
Conflict of Interest Disclosures: None reported.
Funding/Support: This work was supported by an Alpert Medical School of Brown University Summer Assistantship (Ms Chuang).
Role of the Sponsor: The Alpert Medical School had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; or preparation, review, or approval of the manuscript.
Additional Contributions: Rahul S. Dalal, BS, and Kelly E. MacDonald, BS, students at the Alpert Medical School of Brown University, assisted in the initial evaluation of media reports; Joseph W. Hogan, ScD, Professor of Biostatistics, Brown University, provided biostatistical advice.