I have used contacts 1 time, and they hurt me. they just won't work for me. My aunt wears them, but has to keep a pair of glasses anyway, because if she runs out and can't get more right away, then she wears the glasses. and just like glasses can break, contacts can scratch and tear. I use glasses, but that is me. Try to see if you could maybe get a trial pair or something. then if you like them, great. if not, you tried and oh well.
I have astigmatism, which means my eyeballs are slightly elongated... More like a football than a baseball. I tried contacts once, but I could feel them turn on my eye, and then things would go blurry. So it depends on what your eyesight problem is.