1. Department of Ophthalmology, College of Medicine, Pusan National University Yangsan Hospital, Yangsan, South Korea
2. Department of Ophthalmology, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, South Korea
3. Department of Ophthalmology, Pusan National University College of Medicine, Busan, Korea
4. Department of Biostatistics, Clinical Trial Center, Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
5. Department of Ophthalmology, Busan Medical Center, Busan, Korea