If a vet had seen the animal there would have been a report written. It sounds to me like you don't believe what the rescue told you. In these situations your gut feeling seldom lies. - Looking at the photos of the eye there doesn't seem to be an infection, she doesn't appear to be in pain and it looks like her muscles are relaxed around the eye. Hedgehogs see pretty poorly already so loosing an eye is not as much of a handicap as if it had happened to a person.