Profile of patients with essential blepharospasm and hemifacial spasm in the two largest ophthalmology reference centers in Brazil - Fowler, Flavio A; Yabumoto, Cristina; Osaki, Midori H; Gameiro, Gustavo R; Brabo, Janaina L; Matayoshi, Suzana; Marinho, Regina C. R. S; Osaki, Tammy H (Arquivos brasileiros de oftalmologia, 2024)