The snake on the left?
I assume you said he is missing one eye?
Thats what It looks like to me. Or his other eye is swollen.
As far as not having one of his eyes, I'm sure the bp will be fine considering their eyes are'nt one of their most valuable senses. They mainly use smell and their pits to sense heat. I think he can flourish without one eye. As long as that socket is healed up he should do great :]
If you have more concerns you should bring the snake to a vet.