Submitted for Publication: October 3, 2012; final revision received March 14, 2013; accepted March 23, 2013.
Published Online: September 12, 2013. doi:10.1001/jamaophthalmol.2013.4471.
Study concept and design: Curriero, Pinchoff, Friedman, Ramulu.
Acquisition of data: van Landingham, Ramulu.
Analysis and interpretation of data: Curriero, Pinchoff, van Landingham, Ferrucci.
Drafting of the manuscript: Curriero, Pinchoff, Friedman.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Curriero, Pinchoff, van Landingham, Ferrucci.
Obtained funding: Ramulu.
Administrative, technical, or material support: Curriero, Pinchoff, van Landingham, Ramulu.
Study supervision: Curriero, Friedman, Ramulu.
Conflict of Interest Disclosures: None reported.
Funding/Support: This work was supported by the Dennis W. Jahnigen Memorial Award, National Institutes of Health grant EY018595, the Research to Prevent Blindness Robert and Helen Schaub Special Scholar Award, and the Intramural Research Program of the National Institutes of Health National Institute on Aging.
Role of the Sponsors: The sponsors had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.