Article History
Received: 29 September 2020
Accepted: 4 June 2021
First Online: 31 August 2021
Conflicts of interest
: K. Oku, None; K. Tokutsu, Consultant fee (ASTEM); S. Matsuda, Consultant fee (YAGAMI), Lecture fee (Chugai); H. Kondo, Lecture fee (Santen, Bayer, Kowa, Senju, Otsuka, RE Medical), Grant, Lecture fee (Alcon, AMO, Novartis,).