Accepted for Publication: January 21, 2014.
Published Online: March 13, 2014. doi:10.1001/jamaophthalmol.2014.257.
Study concept and design: All authors.
Acquisition of data: Minckler, Small.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: All authors.
Critical revision of the manuscript for important intellectual content: Minckler, Walsh.
Administrative, technical, and material support: All authors.
Study supervision: Minckler.
Conflict of Interest Disclosures: None reported.