Postoperative courses of 68 eyes of 58 glaucoma patients who underwent posterior chamber intraocular lens implantation combined with trabeculectomy were studied retrospectively. The visual acuity was 0.5 or better in 66% of the eyes at 3 months postoperatively. The average intraocular pressure (IOP) was below 15 mmHg till 16 months postoperatively. An analysis of the postoperative course using the life-table method of Kaplan-Meier revealed that the probability of successful IOP control with medication was 83% at 18 months and 47% without medication. The subjects aged 75 years or older showed significantly higher success probability than those younger than 75 years, while types of glaucoma, the preoperative IOP control, location of conjunctival or sclerocorneal incision, postoperative 5-fluorouracil (5-FU) injections or surgical intervention on the iris had no significant effects on the probability of successful IOP control. The probability of subsistence of functional filtering bleb was 24% at 18-month follow-up, on which postoperative administration of 5-FU of 35 mg or more had a favorable effect.