Department of Ophthalmology, University of Washington, Seattle, Washington.
Address correspondence to Courtney E. Francis, MD, Department of Ophthalmology, University of Washington, Box 359608, 325 Ninth Avenue, Seattle, WA 98104; E-mail: email@example.com
Supported by an unrestricted grant from Research to Prevent Blindness. The funding organization had no role in the design or conduct of this research.
The authors report no conflicts of interest.