1. Department of Neurology, Pusan National University Yangsan Hospital, Yangsan, Korea.
2. Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea.
3. Department of Ophthalmology, Pusan National University Yangsan Hospital, Yangsan, Korea.
4. Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Korea.