Is astigmatism hereditary?
I know that they say some types of eye problems and different things are hereditary but doesn't that just increase your odds of having it? Not guarentee them? I'm only curious because my niece is 4 and they just found out she has an astigmatism. My SIL is now going around pointing fingers and placing the blame on my MIL and it's upsetting her. It's not in a joking manner either. SIL does this with everything, she blames my fiance' for her son having cowlicks (don't know who he got them from though) and this birthmark on they're chest that the family calls a thrid nipple but it isn't, then it's FIL's fault the girl has thin hair and the other uncles fault her son's ears are big and stick out and it's the whole families fault the boy isn't a brain in school and the list goes on. If you ask her the kids didn't get anything from her although she is Philipino and we're white and they look more like her than anyone. (Her mother has glasses but she doesn't mention that) Anyway I just was wondering about some of this stuff. I'd like to know so the next time she tries to hurt someone I can tell them it's not true. Don't these things occur only when certain genes from both mother and father combine?
Maybe this is petty but it is causing problems and upsetting people for being the reason why her kids aren't perfect. I forget most of what I learned in Biology in high school because it's been so long.