[Laser trials]

Area of Science:

• Ophthalmology
• Glaucoma Research
• Laser Therapy

Background:

• Glaucoma management often involves eye drops, but laser treatments are emerging.
• Selective laser trabeculoplasty (SLT) and laser peripheral iridotomy are key interventions.
• Evaluating real-world effectiveness and cost-benefit is crucial for treatment guidelines.

Purpose of the Study:

• To present high-quality studies on glaucoma treatments, including SLT and laser peripheral iridotomy.
• To assess the clinical effectiveness, safety, and cost-effectiveness of SLT versus eye drops.
• To evaluate the efficacy and safety of prophylactic laser peripheral iridotomy in angle closure.

Main Methods:

• The LiGHT study compared selective laser trabeculoplasty (SLT) with eye drops for intraocular pressure (IOP) reduction.
• Real-world data on SLT effectiveness over time was analyzed.
• The ZAP study investigated prophylactic laser peripheral iridotomy in a Chinese population.

Main Results:

• The SLT group achieved target IOP with fewer visits than the eye drop group in the LiGHT study.
• Cost analysis favored SLT, leading to its recommendation as a first-line treatment for ocular hypertension and primary open-angle glaucoma.
• SLT effectiveness decreased over 2 years, influenced by factors like medication and glaucoma severity.
• Prophylactic laser iridotomy for suspected angle closure was not recommended based on ZAP study findings.

Conclusions:

• SLT is a cost-effective first-line treatment for open-angle glaucoma and ocular hypertension, though long-term efficacy requires monitoring.
• Prophylactic laser peripheral iridotomy is not currently recommended for suspected angle closure.
• Further research is needed to fully understand the long-term outcomes and limitations of these glaucoma interventions.