Blindness is one of the most terrible conditions that human beings can experience, since those of us who can see depend on sight for almost all of our daily activities. Therefore, aids for the blind have always been given special consideration. These aids include texts written in Braille, Braille printers, electronic magnifying glasses, mobility aids, books and other texts read aloud, talking watches, and many more. A 2008 article published in Communications of the ACM summarizes the state of these aids at that time. In particular, Chieko Asakawa has been working in the field of mobility aids for the blind for years, having published at least ten articles on the subject between 1998 and 2019.
