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The aim of this prospective study was to evaluate the effectivity of laser peripheral iridoplasty (ALPI) as a first choice therapy for intraocular pressure (IOP) reduction in acute primary angle-closure glaucoma (PACG). The study included 12 patients with a first attack of acute glaucoma, in whom IOP, despite continuing medical therapy for 12 hours, persisted at a level of 5.32 kPa (40.0 mmHg) or higher. The authors used an argon laser manufactured by HGM E-005. Laser parameters were: spot size 300-500 μm, time 0.2-0.5 seconds, intensity 300-500 mW. Laser burns were placed on the whole circumference of the iridocorneal angle numbering 50-60, with the use of a Goldmann contact lens. Applanation tonometry was used to measure IOP shortly before laser therapy and one and two hours after ALPI. Mean IOP prior to treatment was 6.00 ± 1.46 kPa (51.7 ± 11.04 mmHg). Mean IOP one hour after ALPI was 2.77 ± 0.44 kPa (20.83 ± 3.31 mmHg) and after two hours 2.39 ± 0.26 kPa (18.0 ± 2.0 mmHg), which represents a 45.8% reduction in IOP. Two hours after treatment, all patients had transparent corneas. The results of this study confirm that ALPI effectively reduces IOP and enhances the transparency of the cornea in acute PACG. LA: Slovak
Dr V. Malis, Klinika Oftalmologie MFN a JLF UK, Martin
9.3.1 Acute primary angle closure glaucoma (pupillary block) (Part of: 9 Clinical forms of glaucomas > 9.3 Primary angle closure glaucomas)