The folks at Boing Boing shared some medical advice originally posted on Slate.
Q: What should I do if my eyeball pops out of its socket?
Eyeballs work best in their sockets
You should be able to get your eye back in place without serious, long-term damage. (If the ocular muscles tear or if the optic nerve is severed, your outlook won’t be as clear.) The treatment for globe luxation is pretty simple: Doctors apply some topical painkillers, hold back your lashes, and poke your eyeball into its socket by pressing on the white part with gloved fingers. (In some cases, they’ll use a simple tool like a bent paperclip to shoehorn it back into place.) You might get antibiotics, lubricating drops, or steroids to follow up for a few days while your vision returns to normal. If your doctors can’t pop your eye back in – because you’ve got too much swelling in the socket, for example – they’ll give you an eye shield and consider a more invasive procedure.