Published Online: May 28, 2015. doi:10.1001/jamaophthalmol.2015.1457.
Study concept and design: Horton.
Acquisition, analysis, or interpretation of data: Horton, Miller.
Drafting of the manuscript: Horton.
Critical revision of the manuscript for important intellectual content: Horton, Miller.
Obtained funding: Horton.
Administrative, technical, or material support: Horton, Miller.
Study supervision: Horton.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Funding/Support: This work was supported by grants EY10217 (Dr Horton) and EY02162 (Beckman Vision Center) from the National Eye Institute and a physician-scientist award from Research to Prevent Blindness (Dr Horton).
Role of the Funder/Sponsor: The funders 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.
Additional Contributions: Alicia B. Parker, BS, University of California, San Francisco, provided technical support; she received no compensation.