Abstract
PURPOSE: To report a randomized clinical trial of postoperative subconjunctival injections of low-dose 5-fluorouracil in patients undergoing primary trabeculectomy. METHODS: In a prospective, randomized clinical trial, 40 eyes of 40 patients were randomized to the low-dose 5-fluorouracil group and received three subconjunctival injections of 5 mg each over 11 postoperative days, and 40 eyes of 40 patients were randomized to trabeculectomy without 5-fluorouracil. RESULTS: Mean (±SD) preoperative and 1-year postoperative intraocular pressures in the 5-fluorouracil group were 26.9 (±9.5) and 15.3 (±5.8) mm Hg, respectively. In the control group these were 25.9 (±8.1) mm Hg, and 15.8 (±5.1) mm Hg, respectively. The patients who received 5-fluorouracil had a mean reduction in intraocular pressure of 11.5 (±9.1) mm Hg at a median follow-up of 52.3 weeks. The control group had a mean reduction in intraocular pressure of 10.2 (±8.7) mm Hg at a median follow-up of 52.6 weeks. These differences were not statistically significant. CONCLUSIONS: Three postoperative subconjunctival 5-fluorouracil injections of 5 mg each after trabeculectomy in eyes at low risk for failure had no statistically or clinically significant effect on reduction of intraocular pressure with 1-year follow-up. Enhancement of success in this group of patients may require a larger total dose of 5-fluorouracil.
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