[1] Department of Ophthalmology and Visual Sciences, UIC Eye Center, University of Illinois at Chicago College of Medicine, Chicago, IL
[2] The Research and Development Service, The West Side Veterans Administration Medical Center, Chicago, IL
[3] Department of Neurology, Loyola University Stritch School of Medicine, Maywood, IL
[4] Department of Ophthalmology, New York University Medical Center, New York, NY