Submitted for Publication: June 14, 2013; final revision received July 8, 2013; accepted July 26, 2013.
Published Online: December 26, 2013. doi:10.1001/jamaophthalmol.2013.6259.
Study concept and design: Susanna, Gustavo De Moraes.
Acquisition of data: Susanna.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Susanna, Gustavo De Moraes, Alencar.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Gustavo De Moraes, Alencar.
Obtained funding: Ritch.
Administrative, technical, or material support: Susanna.
Study supervision: Susanna, Gustavo De Moraes.
Conflict of Interest Disclosures: None reported.
Funding/Support: The study was supported by the Edith C. Blum Foundation.
Role of the Sponsor: The Edith C. Blum Foundation had no role in the design or 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.