All the specialists I have spoken to insist that dyslexia is an auditory problem not a visual problem... Interestingly it's my 2nd DD (DYS iq and not diagnosed dyslexic) who has the problems in both reading and writing with reversals, tracking, etc. she learned to read slower an later than her iq might suggest but way ahead if age peers. And radically in advance of her dyslexic sister (3-4 years in advance). For her we found serifs were an absolute must and excellent quality typography. Which is to say a good quality font properly word and line spaced was fairly ok and things like comic sans unreadable.... Of course readers rarely feature good fonts or typography, and were torturous.
