Have they cultured her now?
Your snake's eyes drain into their mouth via a lacrimal duct. This can plugged for a variety of reasons - and often during advanced respiratory infections the lacrimal duct becomes infected, swollen and subsequently does not drain.
This leads to an eye that looks like it's bulging out.
It extremely uncomfortable for the animal so let's hope that they vet knows the trick to drain it if that's indeed what it is.
Best of luck. I think it would be a positive thing if someone cultured this infection instead of throwing antibiotics at it.