Submitted for Publication: November 18, 2012; final revision received March 9, 2013; accepted March 12, 2013.
Published Online: September 5, 2013. doi:10.1001/jamaophthalmol.2013.4422.
Study concept and design: Berry, Astrahan, Murphree, Kim.
Acquisition of data: All authors.
Analysis and interpretation of data: Berry, Dandapani, Kim.
Drafting of the manuscript: Berry, Stevanovic, Astrahan, Kim.
Critical revision of the manuscript for important intellectual content: Berry, Dandapani, Lee, Astrahan, Murphree, Kim.
Statistical analysis: Berry, Stevanovic.
Administrative, technical, or material support: Berry, Stevanovic, Murphree.
Study supervision: Lee, Murphree, Kim.
Conflict of Interest Disclosures: Dr Astrahan holds an ownership position in Eye Physics LLC, which was incorporated in 2007 to continue development of the Plaque Simulator software and Eye Physics plaques following Dr Astrahan’s emeritus retirement from the University of Southern California (USC) in 2010. During 1990-2010, no outside funding for development or material support for any of his contributions was received by USC. No compensation was received for any patient in this study. From 1995-2010, USC and Dr Astrahan shared a royalty derived from licensed distribution of the Plaque Simulator software to other institutions. No other disclosures were reported.
Previous Presentation: This study was presented in part at the American Society for Therapeutic Radiation Oncology (ASTRO); November 1, 2012; Boston, Massachusetts.
Additional Contributions: Statistical consultation was provided by Choo Phei Wee, MA (statistician, Children’s Hospital Los Angeles).