cold, rain-swept streets of boston on the way to an appointment at the center. >> so there's a chin rest in front of you. >> first, dr. joseph rizzo, of massachusetts cry and ear institute, e value waited sutton's one intact eye, and he discovered that even though the nerve was destroyed, the rest of the eye, theoretically, at least, could work. >> my son is in jail charged for first-degree murder. >> they listened to the awful story of the way john lost his eyesight. the explained the amazing things they were doing here, like growing corneas in a petri dish, and of course working on optic nerve regeneration. john took it all in, amazed. and for the first time since the shooting, he felt a surge of positive excitement, and a little germ of hope lodged itself in his stubborn mind. and you were thinking maybe they can do it for you?