I don't teach school math but as a part of my voluntary activities in some NGOs, sometimes I am in this special situation.
When I was in a school for special children who cannot see I came across a question about a possible problem in reading advanced math texts for those who want to follow research level mathematics in future. Both of writing and reading advanced math texts in the Braille writing system are hard (if it is possible at all). It takes too much time in both writing and reading phases. Fortunately nowadays there are text scanners which can read books and transform the written words to voice. But the main problem of such devices is that they cannot read "unusual" characters like math symbols. This is an essential problem because the meaning of a professional math book/paper is closely related to its math symbols.
Question. Is there any math text reader device to help math students who cannot see? If no, is it possible to design such a useful device? Do you know anybody (e.g. a software/hardware engineer) who can help us in this direction?
Remark. For the second part of the above question note that most of the professional math texts are written in LaTeX language which is very near to our natural language in some sense. For example when we want to write $\emptyset$ symbol we simply write \emptyset between two $ symbols. Maybe a device which can detect the LaTeX code of each math symbol by scanning, could provide the first step of designing a complete math text reader device. Such an instrument could be a revolutionary change in special education and a great help for those who want to see the beauty of mathematics.