Submitted for Publication: March 6, 2014; final revision received May 21, 2014; accepted July 14, 2014.
Published Online: September 11, 2014. doi:10.1001/jamaophthalmol.2014.3307.
Study concept and design: Burgmeier, Desai, Volpe.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Burgmeier, Desai, Farner, Tiano, Volpe.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Burgmeier, Tiano.
Obtained funding: Burgmeier, Desai, Tiano.
Administrative, technical, or material support: Burgmeier, Desai, Tiano, Lacey, Volpe.
Study supervision: Burgmeier, Desai, Volpe, Mets.
Conflict of Interest Disclosures: None reported.
Funding/Support: Dr Desai is supported by the Heed Ophthalmic Foundation and the Society of Heed Fellows. The design and conduct of this study was supported by the grants from the Knights Templar Eye Foundation Inc and Research to Prevent Blindness.
Role of the Sponsor/Funder: The funding agencies had no role in the design and conduct of the study; collection, management, analysis, or interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Additional Contributions: We thank Eric I. Knudsen, PhD, at the Stanford School of Medicine, Stanford, California, for study concept and Seth Greenwood, MS, at the Harvard School of Public Health, Boston, Massachusetts, for statistical analysis. Neither Dr Knudsen nor Mr Greenwood received any financial compensation for their contributions.