One of my friends asked me this question, but I really don't understand what it means. Please can someone explain it to me.
closed as not a real question by Hugo, TimLymington, Matt Эллен, Marthaª, Mitch Dec 13 '11 at 15:39
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, see the FAQ.
What your friend is saying is that as some dyslexics may have trouble with the order of letters or words, "vice-versa" is irrelevant to them as it means "in reverse order"
Obviously your friend isn't taking into account the variable extent of dyslexia in different individuals - many can read perfectly well, and others can given the use of systems to help identify letters and letter order.