Expulsive iridodialysis: an isolated injury after phacoemulsification.

I report a case of blunt trauma to an eye that had had uneventful phacoemulsification through a 5.0 mm self-sealing corneoscleral incision 4 months earlier. Total iris expulsion occurred through the cataract incision without extension of the wound or disruption of the posterior capsule or intraocular lens. A possible mechanism for this injury is discussed and related to the unique properties of the corneoscleral incision.