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Bleb leakage is a serious complication of glaucoma filtering surgery. This study describes the method and the results of a new repair method for ischemic bleb leaks. The subjects were consecutive eleven eyes of 11 patients with bleb leakage who underwent the bleb plication surgery. The bleb plication surgery consisted of two steps: 1) bleb needle redirection to float the conjunctiva away from the sclera as extensively as possible around the ischemic conjunctiva; and 2) multiple “O-shaped” sutures were applied between the non-ischemic conjunctiva just outside the ischemic conjunctiva and corneal limbus. The ischemic conjunctiva was not removed, but undermined beneath the advanced non-ischemic conjunctiva. This bleb plication method was repeated until the leakage was sealed. All patients were followed up for at least 6 months after final bleb plication. After final bleb plication, no recurrence of bleb leakage was observed. Moreover, ischemic changes were no longer observed in the advanced non-ischemic conjunctiva. Pre-operative and final intraocular pressure was 3.2 ± 4.1 and 11.9 ± 2.8 mmHg, respectively. This new repair method of bleb plication was safe and effective in sealing the leakage. The conjunctiva is not excised, and hence it does not run out.

Bleb plication: a minimally invasive repair method for a leaking ischemic bleb after trabeculectomy