Laser trabeculoplasty and decay effects in glaucoma patients

Area of Science:

• Ophthalmology
• Glaucoma Research
• Surgical Interventions

Background:

• Open-angle glaucoma is a leading cause of irreversible blindness.
• Intraocular pressure (IOP) reduction is the primary goal in glaucoma management.
• Laser trabeculoplasty is a common surgical option for IOP control.

Purpose of the Study:

• To evaluate the long-term efficacy and safety of laser trabeculoplasty in open-angle glaucoma.
• To assess the impact of laser trabeculoplasty on medication requirements.
• To identify patient factors influencing treatment response.

Main Methods:

• Retrospective review of 40 patients (47 eyes) with open-angle glaucoma treated with laser trabeculoplasty.
• Follow-up duration of at least one year for the majority of patients.
• Analysis of intraocular pressure changes and medication use pre- and post-treatment.

Main Results:

• 89% of patients achieved satisfactory IOP reduction, averaging 5 mmHg.
• No significant pressure decay or reversal observed after one year.
• 76% of patients on carbonic anhydrase inhibitors discontinued medication post-laser.
• Positive responses noted in Black, aphakic, and diabetic patients; less favorable in hypertensive and narrow-angle glaucoma patients.
• Re-treatment success rate was low (1/6 patients).

Conclusions:

• Laser trabeculoplasty is an effective treatment for reducing intraocular pressure in open-angle glaucoma with sustained effect.
• It can lead to a significant reduction in medication burden for many patients.
• Patient-specific factors influence treatment outcomes, and re-treatment efficacy is limited.