I have astigmatism. What I was told is that it actually is the shape of your eye. It's more football shaped than round. That's why it's difficult to find contacts that fit. Also, apparently it affects your ability to focus, but not necessarily to see, if that makes sense. For example, if I look at a sign it takes me a few seconds to actually see what it says, but I can read it once my eyes focus.
Amanda - happily married wife to N
and mother to B