Submitted for Publication: August 17, 2013; final revision received January 6, 2014; accepted January 7, 2014.
Published Online: April 24, 2014. doi:10.1001/jamaophthalmol.2014.358.
Study concept and design: Yang, Hunter.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Yang, Hunter.
Critical revision of the manuscript for important intellectual content: MacKinnon, Dagi, Hunter.
Statistical analysis: Yang, Hunter.
Obtained funding: Hunter.
Administrative, technical, or material support: Hunter.
Study supervision: Dagi, Hunter.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported in part by the Children’s Hospital Ophthalmology Foundation, Boston, Massachusetts (Dr Hunter).
Role of the Sponsor: The funding source 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.