Which branch should I join?

I honestly don't know if my eyes are correctable (never asked). I know with me glasses on I have 20/20.
Flying would be cool but working on them is just as well to me. The only other thing (which I'm not sure would help or hurt me) is that I'm in my late 20s so life exp and maturity is there but I am older than most going in.
Moving from base to base doesn't bother me one bit, my father is retired military so I'm use to it.