Visually impaired individuals worldwide are at a risk of accidents while walking. In particular. falling from a raised place. such as stairs. https://echobookmarks.com/story19493448/posi%C3%A7%C3%B5es-verticalizadas-no-parto-e-a-preven%C3%A7%C3%A3o-de-lacera%C3%A7%C3%B5es-perineais-revis%C3%A3o-sistem%C3%A1tica-e-metan%C3%A1lise