Corneal blindness in Plato’s cave: the acting forces to prevent and revert corneal opacity. Part I: epidemiology and new physiopathological concepts - Barbosa, Amanda Pires; Alves, Mônica; Furtado, João Marcello Fortes; Adriano, Leidiane; Nominato, Luis Fernando; Dias, Lara Cristina; Fantucci, Marina Zílio; Murashima, Adriana de Andrade Batista; Rocha, Eduardo Melani (Arquivos Brasileiros de Oftalmologia, 2020)