Published Online: September 26, 2013. doi:10.1001/jamaophthalmol.2013.5062.
Study concept and design: Kowalski, Abdel Aziz, Romanowski, Shanks.
Acquisition of data: Kowalski, Abdel Aziz.
Analysis and interpretation of data: Kowalski, Raju.
Drafting of the manuscript: Kowalski, Abdel Aziz.
Critical revision of the manuscript for important intellectual content: Kowalski, Romanowski, Shanks, Nau, Raju.
Statistical analysis: Kowalski.
Obtained funding: Kowalski.
Administrative, technical, or material support: All authors.
Study supervision: Kowalski.
Conflict of Interest Disclosures: Drs Kowalski, Romanowski, and Shanks have been paid fees by Bausch & Lomb, Tampa, Florida, as specialty advisors for other nonrelated endeavors. No other disclosures were reported.
Funding/Support: We are grateful to the Pennsylvania Lions Club, the Charles T. Campbell Foundation, the Eye and Ear Foundation of Pittsburgh, Pennsylvania, the National Institutes of Health (core grant P30 EY008098), and the Research to Prevent Blindness, New York, New York, for their continued financial support. Dr Shanks has received a career development award from the Research to Prevent Blindness and a grant from the National Institutes of Health (AI085570).
Role of the Sponsor: The funding agencies 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.