Submitted for Publication: October 2, 2013; final revision received December 12, 2013; accepted December 19, 2013.
Published Online: April 10, 2014. doi:10.1001/jamaophthalmol.2014.270.
Study concept and design: All authors.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Nazari.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Nazari.
Obtained funding: Rao.
Administrative, technical, or material support: Karakousis, Rao.
Study supervision: Rao.
Conflict of Interest Disclosures: None reported.
Funding/Support: Supported in part by National Institutes of Health grants EY03040 and 019506 and Research to Prevent Blindness.
Role of the Sponsor: The sponsors 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.