Guiding Statistics
Braille is the primary medium for literacy for totally blind people for both reading and writing.
there are a number of braille codes which include literary, math, foreign languages, music and computer.
there are no quality standards for teaching braille in colleges and universities and few refresher courses available after graduation
nearly 8,500 professionals are serving about 133,000 blind and visually impaired children and adults, nearly a 1 to 16 ratio