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Mini-trabeculectomy in comparison to conventional trabeculectomy in primary open angle glaucoma
S K Thimmarayan1, V A Rao, A Gupta
1Department of Ophthalmology, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India.
European Journal of Ophthalmology
|October 25, 2006
Summary
Mini-trabeculectomy offers a safe and effective surgical option for primary open angle glaucoma (POAG) patients, demonstrating comparable intraocular pressure (IOP) control to conventional trabeculectomy with fewer complications.
Area of Science:
- Ophthalmology
- Surgical Innovation
- Glaucoma Management
Background:
- Primary open-angle glaucoma (POAG) is a leading cause of irreversible blindness.
- Medical management often fails to control intraocular pressure (IOP) in advanced POAG.
- Surgical intervention is necessary for patients with medically uncontrolled POAG.
Purpose of the Study:
- To compare the safety and efficacy of mini-trabeculectomy versus conventional trabeculectomy.
- To evaluate intraocular pressure (IOP) reduction and complication rates.
- To determine the suitability of mini-trabeculectomy as an alternative surgical procedure for POAG.
Main Methods:
- Prospective interventional study involving 60 eyes of 54 patients with medically uncontrolled POAG.
- Patients were divided into two groups: mini-trabeculectomy (30 eyes) and conventional trabeculectomy (30 eyes).
- Follow-up duration was at least 15 months, with statistical analysis using Student's t test and Pearson's chi-square test.
Main Results:
- Both procedures significantly reduced IOP (p<0.0001).
- Mean IOP at 15 months was 15.80+/-4.3 mmHg (mini-trabeculectomy) and 16.13+/-3.3 mmHg (conventional trabeculectomy).
- Mini-trabeculectomy showed significantly better IOP control at 6 months (p=0.041) and had fewer complications and failures.
Conclusions:
- Mini-trabeculectomy is a safe and effective alternative for IOP control in POAG.
- The modified tunnel incision in mini-trabeculectomy may reduce surgical complications.
- This technique offers a promising option for glaucoma surgical management.
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