Application of diagnostic criteria for optic neuritis – Authors' reply. Issue 5 (May 2023) - Petzold, Axel; Liu, Yaou; Fraser, Clare; Abegg, Mathias; Alroughani, Raed; Alshowaeir, Daniah; Alvarenga, Regina; Andris, Cécile; Asgari, Nasrin; Barnett, Yael; Battistella, Roberto; et al.