I am 18 and my contacts perscription is -1.00 on the left and -1.25 on the left. For a while I have though my vision had gotten worse because I have a hard time seeing signs on the road when I am driving and a lot of things aren't very clear in the distance. Recently I looked at the perscription for my glasses, I don't have any glasses but I do I have a perscription for some, and it said that I had -.5 astigmatism in each eye. Could this be what is causing my vision to be unclear? It seems like it was clearer before but I could be wrong. So do you think my vision has gotten worse or it is the astigmatism that is making me see blurry? Thanks