In 1998 he attended a school for the blind to learn basic skills, such as how to read Braille.
His touch was the way I imagine a blind man's fingers must move when reading Braille.
"Reading a map for me would be like trying to read Braille," says this veterinary surgeon.
The ability to read Braille is still the most important basis of educating blind children.
As blind patients learned how to read Braille, some of them taught others.
Delaney taught more than 600 patients how to read Braille.
He also worked on such emerging technologies as machines than can read Braille.
You use your fingers for input when you are reading Braille.
Although a blind person reads Braille, from left to right, with two hands, sighted people learn to read it by eye.