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Argon laser trabeculoplasty or trabeculectomy a prospective randomised block study.
Transactions of the Ophthalmological Societies of the United Kingdom
|January 1, 1985
Summary
Argon laser trabeculoplasty and trabeculectomy effectively lower intraocular pressure in chronic open angle glaucoma. Trabeculectomy offers more permanent pressure reduction than laser trabeculoplasty.
Area of Science:
- Ophthalmology
- Glaucoma Research
- Surgical Interventions
Background:
- Chronic open angle glaucoma often requires advanced treatment when medication is insufficient.
- Two primary surgical interventions, argon laser trabeculoplasty and trabeculectomy, are considered for pressure management.
Purpose of the Study:
- To compare the efficacy of argon laser trabeculoplasty versus trabeculectomy in managing chronic open angle glaucoma.
- To assess the long-term intraocular pressure control offered by each treatment modality.
Main Methods:
- A prospective randomized block study design was employed.
- Patients with medically uncontrolled chronic open angle glaucoma were recruited across two UK centers.
- Regression analysis was used to evaluate treatment outcomes.
Main Results:
- Both argon laser trabeculoplasty and trabeculectomy demonstrated effectiveness in reducing intraocular pressure.
- Trabeculectomy proved superior to laser trabeculoplasty for sustained, normal intraocular pressure.
- Laser trabeculoplasty showed greater efficacy in patients with initially high intraocular pressure, though many still required further intervention.
Conclusions:
- Argon laser trabeculoplasty serves as a valuable adjunct but not a replacement for trabeculectomy in achieving permanent normal intraocular pressure.
- Given the effectiveness of both procedures, pre-operative simple local medication is deemed sufficient before proceeding to active therapy.