I took care of a young man recently who was shot in the eye at close range by a 'friend' with a BB gun. You can see the BB lodged in the right orbit in the Xray. The kid had light perception only from this eye and he had an 'open globe injury' meaning the eye itself was punctured. Other physical findings of note; a misshapen pupil, severe pain, a large hyphema, and a large scleral laceration that carried into the inferior outer portion of the cornea.
I called our eye surgeon immediately and he came in. He was unable to operate on this young man as, on CT scan, the missile was shown to be deep in the vitreous of the globe. The patient was transferred by ambulance to the nearest facility with a retinal surgeon on call. Hopefully he will do well but it is unlikely that he will ever regain full vision in the injured eye.
Trivia: What was the red-haired bully's name in A Christmas Story?