Natural Voices is supported by some screen readers for visually impaired and blind people, by some software-based communication aids for non-speaking people as well as other programs.
A free dyslexic text reader/learning tool, a graphical, interactive text reader integrated with computer text-to-speech whose level of focus, complexity, and detail is adjustable according to the user's needs.
Software for formula processing that produces mathematical formulas that are readable visually, in Braille, or with screen-readers. Suitable for blind and the visually impaired.