Quite a lot, actually. More than you know.
I even have to double-check a heck ton of word spellings due to a possible "spatial interpretion" problem I may have but haven't been tested for, my eye dr informed me, as I don't have dyslexia, but have issues with letters. Words might look wrong to me, but I often can't pinpoint why.
Difference is, I only pointed it out in reponse to you doing so. Which is as I always do, not pointing out such errors to those who don't habitually do so.