A swedish ice hockey player, Mattias Weinhandl, suffered a detached retina a few years ago (he got a hockey stick in his eye). He was out for 6-12 months (can't remember), and he has only got 5% vision left on that eye. But he came back, and last season (he came back to Sweden during the NHL lockout) he finished top scorer in the Swedish Elite League. He is proof that you can come back even after such a serious injury. I have no doubt that Momo will come back as well, even if the injury is that bad. YNWA!