A double-blind study was performed to compare the effects of a placebo, a topical corticosteroid, and a topical non-steroidal prostaglandin inhibitor on the inflammation and the course of intraocular pressure that follows cyclocryotherapy. Flurbiprofen 0.03%, dexamethasone phosphate 0.1%, and a sterile vehicle placebo were used both pre and postoperatively. Less anterior chamber flare was seen in flurbiprofen-treated eyes than those receiving placebo, but only at four weeks after surgery. More erythema was seen in flurbiprofen-treated eyes than in those receiving dexamethasone. Significance was approached showing more anterior chamber cells in placebo-treated eyes than in steroid-treated eyes. Cyclocryotherapy produces inflammation which is difficult to control with topically administered medications.