I've been wearing glasses since I was about four. I might've had a chance to change this back then, but I genuinely couldn't see anything with the eyepatch on–couldn't do anything at school so I just refused to wear it.
My left's in pretty bad shape even now, never have been able to explain the problem correctly. If I lose the right I'm in trouble, but surprisingly enough I can see fine without my glasses. Eyesight problems aren't the end of the world--you'll probably only need light prescription glasses anyway to help you focus.