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A randomised clinical trial comparing the outcome of trabeculectomy using triangular versus rectangular scleral
1Department of Ophthalmology, B P Koirala Institute of Health Sciences, Dharan, Sunsari, Nepal. ophth_eye@yahoo.com
Summary
Trabeculectomy with triangular or rectangular scleral flaps shows similar effectiveness for glaucoma management. Both surgical techniques provide comparable intraocular pressure control, bleb characteristics, and complication rates.
Area of Science:
- Ophthalmology
- Surgical Innovation
- Glaucoma Research
Background:
- Trabeculectomy is the established surgical standard for glaucoma treatment.
- Glaucoma management requires effective surgical interventions to control intraocular pressure (IOP).
Purpose of the Study:
- To compare the efficacy of triangular versus rectangular scleral flaps in trabeculectomy.
- Evaluate the impact of scleral flap shape on surgical outcomes for glaucoma.
Main Methods:
- A randomized study involving 22 patients undergoing trabeculectomy.
- Patients were assigned to either triangular (Group A) or rectangular (Group B) scleral flaps.
- Key parameters assessed included IOP, anterior chamber depth, bleb characteristics, and complications.
Main Results:
- Both flap types achieved significant IOP reduction (p=0.001).
- Surgical success rates were high and comparable (91% Group A vs. 82% Group B; p=0.534).
- Bleb scores and complication rates, including transient hypotony, were similar between groups.
Conclusions:
- Triangular and rectangular scleral flaps are equally effective in trabeculectomy.
- Surgical outcomes, including IOP control and bleb morphology, are not significantly different based on flap shape.
- Both techniques offer comparable safety profiles for glaucoma surgery.
