What's new in laser treatment for glaucoma?

Area of Science:

• Ophthalmology
• Medical Technology
• Laser Surgery

Background:

• Glaucoma treatment algorithms are continuously evolving.
• Laser therapies offer diverse mechanisms for lowering intraocular pressure.
• Recent advancements necessitate an updated evaluation of laser applications in glaucoma care.

Purpose of the Study:

• To review recent studies on established and novel laser therapies for glaucoma.
• To critically assess the current role of these laser treatments within the glaucoma management algorithm.

Main Methods:

• Literature review of recently published studies on laser glaucoma treatments.
• Critical evaluation of the efficacy and application of various laser modalities.

Main Results:

• Selective laser trabeculoplasty (SLT) shows efficacy as initial therapy for open-angle glaucoma and ocular hypertension.
• Newer lasers like micropulse diode, titanium sapphire, and excimer laser trabeculotomy demonstrate promising early outcomes.
• Endoscopic and transscleral cyclophotocoagulation (ECP, TCP) are typically for refractory cases, but emerging use in earlier stages is noted.
• Laser iridotomy's long-term efficacy for primary angle closure prevention remains unclear.
• Laser goniopuncture is a valuable adjunct to nonpenetrating surgery but lacks widespread adoption.

Conclusions:

• Laser use in glaucoma is shifting towards earlier and primary interventions.
• SLT's application is expanding to more glaucoma subtypes.
• ECP and TCP remain primarily for refractory glaucomas.
• Novel laser techniques present potential alternatives and adjuncts to current treatments.
• Further research is essential to establish the definitive safety and efficacy of emerging laser modalities.