I just got glasses not too long ago and I can't shoot open or optical sights with them. I'm fortunate in that my vision is still good enough for me to hunt and shoot without them and in fact it's only my left eye that really has a problem.

I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them. John Wayne-The Shootist