As someone with (mild) dyslexia I didn't even realise there were people out there making friendly typography so I had a look around, e.g. dyslexie font [1] is a pretty cool read.
Yeah, I employ a "Dyslexia" button on my text-heavy blogs that replaces the typeface with OpenDyslexic. Definitely check it out if you don't know about it.
[1] http://www.dezeen.com/2014/11/09/christian-boer-dyslexie-typ...