*Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; and

†Department of Ophthalmology, Chungnam National University Sejong Hospital, Sejong, Korea.

Reprint requests: Se Woong Kang, MD, PhD, Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, #81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea; e-mail: [email protected]

None of the authors has any financial/conflicting interests to disclose.

All authors attest that they meet the current ICMJE criteria for authorship. K. Y. Son conceptualized the study, acquired and analyzed the data, and drafted and revised the manuscript. S. Hwang and J. Choi revised the manuscript and analyzed the data. Jiyoun Choi acquired and analyzed the data. S. J. Kim designed and conceptualized the content of the manuscript and critically revised the manuscript. S. W. Kang designed the study, analyzed the data, critically revised the manuscript, and supervised the study.