Increased intraocular pressure following endarterectomy

Two patients are presented with neovascularization of the iris due to ischemia secondary to decreased blood flow through the carotid arteries. Panretinal photocoagulation was followed by regression of the new iris blood vessels to a greater extent in one patient than in the other. Following carotid endarterectomy, intraocular pressure increased, and, in one case, filtering surgery was required. Possible mechanisms for the rise in intraocular pressure following carotid endarterectomy are discussed.