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Trabeculectomy with beta radiation: long-term follow-up.
Jimmy S M Lai1, Agnes S Y Poon, Clement C Y Tham
1Department of Ophthalmology, United Christian Hospital, Kowloon, Hong Kong.
Ophthalmology
|September 18, 2003
Summary
Trabeculectomy with beta radiation is effective for primary open-angle glaucoma (POAG), achieving an 88.4% success rate after 7 years. This glaucoma surgery shows good long-term outcomes with manageable complications.
Area of Science:
- Ophthalmology
- Glaucoma Research
- Surgical Interventions
Background:
- Primary open-angle glaucoma (POAG) is a leading cause of irreversible blindness worldwide.
- Trabeculectomy is a common surgical procedure to reduce intraocular pressure (IOP) in glaucoma patients.
- Adjunctive therapies are often used to enhance the success rates of trabeculectomy.
Purpose of the Study:
- To evaluate the long-term efficacy and safety of trabeculectomy combined with beta radiation.
- To assess the outcomes of this surgical approach in patients with primary open-angle glaucoma.
Main Methods:
- A retrospective, noncomparative case series design was employed.
- Forty-three patients with POAG underwent trabeculectomy with adjunctive beta radiation.
- Longitudinal follow-up evaluated visual acuity, intraocular pressure (IOP), bleb morphology, and complications for at least 7 years.
Main Results:
- The mean follow-up period was 7 years for 43 Chinese patients.
- Mean IOP significantly decreased from 28.3 mmHg preoperatively to 11.9 mmHg postoperatively.
- A qualified success rate of 88.4% (IOP ≤ 21 mmHg) was achieved at 7 years.
- Complications included blebitis (4.7%), hypotony (2.3%), and cataract development (27.9%).
Conclusions:
- Trabeculectomy with a single dose of beta radiation is a viable adjunctive treatment for POAG in Chinese patients.
- The procedure demonstrated a high qualified success rate of 88.4% at the 7-year follow-up.
- While effective, potential complications such as blebitis and cataract formation require monitoring.