Dr. Hidemasa Torii has been a senior assistant professor at the Department of Ophthalmology, Keio University School of Medicine (Tokyo, Japan) since July 2015. He received his PhD degree in medicine from Keio University in February 2014. He worked as a clinical trainee at Yokohama Municipal Hospital from May 2004 to March 2006, as a specialist at the Department of Ophthalmology at Keio University School of Medicine from April 2006 to September 2007, and as an assistant professor at Keio University School of Medicine from April 2009 to June 2015. Dr. Torii was honored with the Grand Prize at the 2018 American Society of Cataract and Refractive Surgery (ASCRS) Film Festival. Moreover, Dr. Torii is a Japan Medical Association-certified health and sports doctor (2015) and a Japan Sports Association-certified sports doctor (2019). He has 74 publications with more than 1200 citations (from Scopus, 11 April 2024) and an h-index of 25. His main research areas include ophthalmology, refraction, myopia, myopia control, and refraction correction.