Submitted for Publication: August 29, 2013; final revision received December 27, 2013; accepted December 29, 2013.
Published Online: February 27, 2014. doi:10.1001/jamaophthalmol.2013.8258.
Study concept and design: Tibbetts, Witkin.
Acquisition of data: All authors.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: All authors.
Critical revision of the manuscript for important intellectual content: All authors.
Administrative, technical, or material support: All authors.
Study supervision: Reichel, Witkin.
Conflict of Interest Disclosures: Dr Reichel is a consultant for Thrombogenics. No other disclosures are reported.