Departments of Ophthalmology and Pediatrics, Emory University School of Medicine, Atlanta, Georgia
Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland
Supported in part by an unrestricted departmental grant (Department of Ophthalmology) from Research to Prevent Blindness, Inc, New York, and by NIH/NEI core grant P30-EY06360 (Department of Ophthalmology). This work was not industry supported.
The authors report no conflicts of interest.