How To: A Novel Surgery for Intractable Canalicular Obstruction

by Munetaka Ushio, MD, PhD, Hidetaka Masahara, MD, PhD, Masashi Sakamoto, MD, PhD, Yasushi Ohta, MD, PhD, Takatoshi Maeno, MD, PhD, and Mitsuya Suzuki, MD, PhD • January 14, 2022