How can typical undergraduate mathematics teaching resources be made accessible to visually impaired students?
One person who has published on this subject is Emma Cliffe. A couple of the points she makes are:
There are difficulties here that are specific to mathematics. It is likely that no one person's job description will cover all the aspects that need to be considered, so any plans should preferably be made together by the student, disability officers and members of the mathematics department.
Not many computer file formats of mathematics can be meaningfully converted to accessible resources. As things currently stand, those that are are: a) well-formatted word-processed documents with equations entered in the correct format; b) well-formatted Latex using a limited range of packages; c) html with MathJax.