1. Department of Ophthalmology, School of Medicine, Emory University, Atlanta, GA, USA
2. Department of Ophthalmology, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
3. Department of Ophthalmology, Hallym University College of Medicine, Kangdong Sacred Heart Hospital, Seoul, South Korea
4. Atlanta VA Center for Visual and Neurocognitive Rehabilitation, Decatur, GA, USA