Time for some self-promotion: right now I am designing a typeface that some people say is easy to read by dyslexic people
https://github.com/abuseofnotation/abuseofnotation.github.io/tree/master/mell
From what I gather, it seems that dyslexic people are confused by fonts in which the glyphs are very similar to one another (e.g. ones where b,d,p,q are one and the same character).
Anyway, if you are interested I would gladly provide my font to Tusky and fix any issues with it, that you guys find.