[1
]
Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School
of Medicine, Seoul, South Korea.
[2
]
Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School
of Medicine, Seoul, South Korea; Happy Eye Clinic, Gwangju, South Korea.
[3
]
Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School
of Medicine, Seoul, South Korea. Electronic address: tychung@skku.edu.