Snakes eye(kind of an update)

Ok gonna make this short. Went to the store and they had this

http://www.freeimagehosting.net/96qq8

I wanted to buy it but had to think about it
Came back and its eye looked like this

http://www.freeimagehosting.net/jwzn7
http://www.freeimagehosting.net/f83pz

Went back and looked today and it looked like this

http://www.freeimagehosting.net/kkp34

The other eye was/is fine now but this eye still looks like this. They are offering me a really nice price on it. If I rescue this will I be in for a big vet bill? Or just proper care will take care of it.

Unless they're willing to give it to you for free, why buy it?

All the store will do is bring in another snake to get neglected.

Also, a vet visit would be needed..

The pics aren't really clear, but I've seen popped eyes on ball pythons before that disappeared never to return after shedding. On the other hand, if it's being caused by an actual injury it might heal itself over time or it might not. On yet another hand, it's possible that it's being caused by a bacterial infection in which case you would need to see a vet. It's your call. It's hard to tell what the actual cause is in pictures.