Published Online: July 10, 2014. doi:10.1001/jamaophthalmol.2014.1037.
Study concept and design: All authors.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: All authors.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Pang, Engelbert.
Administrative, technical, or material support: Pang.
Study supervision: Freund, Engelbert.
Conflict of Interest Disclosures: Dr Freund is a consultant for Heidelberg Engineering, Genentech, Regeneron, and Bayer. No other disclosures were reported.
Funding/Support: This work was supported by the Macula Foundation, Inc.
Role of the Sponsor: The Macula Foundation, Inc 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.