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MicroPulse with MP3 may be useful in refractory glaucoma
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SAN DIEGO — Cyclophotocoagulation with MicroPulse P3 probe may be more useful in patients with refractory glaucoma than transscleral cyclophotocoagulation using the G-Probe laser, according to a speaker here.
“How does micropulse work?” Shan C. Lin, MD, asked at Glaucoma Day preceding the American Society of Cataract and Refractive Surgery meeting. ”Just like the name suggests,” he answered.
Shan C. Lin
“Instead of continuous wave in achieving grafts that pop, you actually spread that energy out into different pulses so that you don’t have to cause sudden damage and achievement of such a large amount of energy in one small area at one time,” he said.
Lin recommends transscleral cyclophotocoagulation using the G-Probe laser (Iridex) for patients with poor visual potential and difficult glaucoma. He recommends cyclophotocoagulation with MicroPulse P3 laser (Iridex) for patients with good, fair or poor visual potential and less refractory glaucoma.
In a prospective, comparative study in Singapore, MicroPulse laser achieved better success rates than continuous wave laser, and there were no cases of prolonged hypotony, Lin said.
“Early evidence in transscleral cyclophotocoagulation showed that maybe the mechanism [micropulse with MP3] really increases uveoscleral outflow,” Lin said. “There is an increased suprachoroidal space after treatment with transscleral cyclophotocoagulation and perhaps an increase in outflow with the transscleral approach,” Lin said. — by Nhu Te
Disclosure: Lin reports no relevant financial disclosures.