The other day my daughter and I were discussing the whole “If you sneeze with your eyes open your eyeballs will pop out of your head” myth, and she asked me what would happen if your eyes did pop out of your head. I said “Well, I guess for that to happen you’d have to tear loose from the six muscles that move each eyeball, but maybe the optic nerve would stretch enough to stay attached.”
Then she asked me if your eyeballs would hurt if that happened, and I started to say that it seemed pretty likely, but then I stopped and realized that I don’t know if pain and other non-visual information is carried through the optic nerve, or if some other cranial nerve(s) attaches to the eyeball somewhere (perhaps through one of the muscles or something?) that carries touch/pain sensations, leaving the optic nerve free for purely optical data.
I tried googling a bit and searching on the board, but I couldn’t find this particular question addressed. So I appeal to the SDMB collective superintellect for help. What’s the deal?