Outcomes of Trabeculectomies Utilizing Two Distinct Conjunctival Flap Designs in Various Glaucoma Types

Abstract

Purpose: This study aims to assess the surgical outcomes of limbus-based versus fornix-based conjunctival flaps in trabeculectomy procedures.

Materials and Methods: A retrospective analysis was conducted involving 42 patients who underwent trabeculectomy with a limbus-based conjunctival flap (Group I) and 42 patients who received a fornix-based conjunctival flap (Group II). The comparison focused on surgical success, additional interventions, medication usage, complications, and bleb morphology over a 12-month postoperative period follow up. The success of trabeculectomy was categorized based on postoperative Intraocular Pressure (IOP) as complete (<18 mmHg), partial (18-21 mmHg), and failed (>21 mmHg).

Results: No statistically significant differences were observed between the groups concerning IOP measurements taken on postoperative day 1, as well as at week 1 and at 1, 3, 6, 9, and 12 months. The success rates of trabeculectomy at 6 and 12 months were comparable between the groups. Additionally, no differences were noted between the groups in terms of bleb morphologies at 6 and 12 months, postoperative complications, the necessity for additional interventions or medical therapy, or the requirement for revision or reoperation at the conclusion of the 12-month follow-up period.

Conclusions: The two distinct conjunctival flap designs (limbus and fornix) demonstrated comparable outcomes in trabeculectomy procedures.