Laser trabeculoplasty primary therapy in open-angle glaucoma. A preliminary report

Area of Science:

• Ophthalmology
• Glaucoma Research
• Laser Therapy

Background:

• Chronic open-angle glaucoma (COAG) is a leading cause of irreversible blindness.
• Effective management of intraocular pressure (IOP) is crucial for preventing glaucomatous optic nerve damage.
• Argon laser trabeculoplasty (ALT) is a common therapeutic option for COAG.

Purpose of the Study:

• To evaluate the efficacy of argon laser trabeculoplasty as a primary treatment for chronic open-angle glaucoma.
• To identify factors influencing the success rate of ALT in COAG patients.

Main Methods:

• Thirty-three patients with COAG were treated with ALT.
• IOP normalization (less than 21 mm Hg) was the primary endpoint.
• Follow-up ranged from six to 18.5 months.
• Correlations between initial IOP, angle landmarks, treatment date, and outcome were analyzed.

Main Results:

• Successful IOP normalization was achieved in 18 patients (55%).
• In successfully treated eyes, IOP normalized within five weeks and remained controlled during follow-up.
• Treatment failure occurred in 15 patients (45%).
• Significant positive correlations with success included lower initial IOP, clear angle landmarks, and later treatment dates, suggesting improved technique over time.

Conclusions:

• Argon laser trabeculoplasty is an effective primary treatment for a majority of chronic open-angle glaucoma patients.
• Initial intraocular pressure, visible angle structures, and advancements in treatment administration are key factors for successful ALT outcomes.