Um, Taewoong http://orcid.org/0000-0001-9059-4751
Seo, Eoi Jong http://orcid.org/0000-0001-6574-7744
Kim, Yoon Jeon http://orcid.org/0000-0003-4293-9641
Yoon, Young Hee http://orcid.org/0000-0002-2849-7528
Article History
Received: 17 April 2019
Revised: 11 September 2019
Accepted: 15 September 2019
First Online: 12 December 2019
Compliance with ethical standards
:
: All authors have not published or submitted any related papers of the present study.
: Young Hee Yoon was supported by grants from the Ministry of Science, ICT, and Future Planning, Republic of Korea (NRF-2017R1D1A1B05028221) and has served on a consultant for Alcon, Bayer, and Allergan and has received consultancy fees from these companies. She has received payments for lectures from Bayer and Allergan. The following authors have no financial disclosures: Eoi Jong Seo, Taewoong Um, and Yoon Jeon Kim.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional review board of Asan Medical Center and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study, formal consent not was required.