1. Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Korea.
2. Research Institute for Sensory Organs, Medical Research Center, Seoul National University, Seoul, Korea.
3. Department of Electrical Engineering, Seoul National University College of Engineering, Seoul, Korea.
4. Department of Ophthalmology, Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea.
5. Department of Ophthalmology, Konkuk University Hospital, Seoul, Korea.