Other, less expensive methods are also to communicate. Creative and reasonable devices like the Tele-Touch Magnifier and raised letter card used to spell out words are used by many people. The question is often asked about the sign language used by people who are deaf-blind and how it is different from the sign language that people who are deaf use. Diane O'Neil is the manager of the deaf-blind program at the Lighthouse. She says it called tactile sign language.
People touch the sign language.
I don't sign that much more differently when I sign to a deaf-blind person. The progress that has been made for people who are deaf-blind will continue and much of this progress is due to the positive example of Helen Keller. This web site is best viewed with a resolution of 800 X 600 or higher.