Dr. David F. Chang describes a 55-year-old patient with a sudden-onset white cataract and no history of trauma. Clues to vitreous prolapse with occult zonular dialysis are evident early in the case. Dr. Chang describes how he managed each step of surgery. After vitrectomy and removal of the nucleus, he notices a small posterior capsule tear, and decides to implant a 3-piece acrylic IOL in the sulcus. He suggests that the PC tear might have been avoided by pointing the vitrector away from the posterior capsule during pars plana vitrectomy.