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Micropulse Trabeculoplasty in Open Angle Glaucoma

BACKGROUND: We report the effect of micropulse laser trabeculoplasty (MLT) in the intraocular pressure (IOP) of patients with uncontrolled open-angle glaucoma (OAG). MATERIALS AND METHODS: In this retrospective review, 30 eyes with OAG were treated with a single session of MLT at the Vista Clinic in...

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Detalles Bibliográficos
Autores principales: Valera-Cornejo, Diego Alejandro, Loayza-Gamboa, Waldo, Herrera-Quiroz, Julio, Alvarado-Vlllacorta, Rosa, Cordova-Crisanto, Luis, Valderrama-Albino, Vanessa, Davalos, Nahuel P
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6319042/
https://www.ncbi.nlm.nih.gov/pubmed/30662885
http://dx.doi.org/10.4103/abr.abr_203_17
Descripción
Sumario:BACKGROUND: We report the effect of micropulse laser trabeculoplasty (MLT) in the intraocular pressure (IOP) of patients with uncontrolled open-angle glaucoma (OAG). MATERIALS AND METHODS: In this retrospective review, 30 eyes with OAG were treated with a single session of MLT at the Vista Clinic in Lima Perú. We used a 532 nm frequency doubled Nd: YAG laser to 360° of the trabecular meshwork with a power of 1000 mW, 15% of the duty cycle, and 300 ms of exposure. The IOP was measured at baseline and at 1 day, 1 week, 3 months, and 6 months post-treatment and were followed up for one last control. RESULTS: The mean baseline IOP was 15.6 mmHg and in the last control was 12.8 mmHg, mean follow-up time of 19 months (±10 standard deviation [SD]). The mean reduction of IOP in the 1(st) day was 1.6 mmHg (±2.6 SD) and 1.2 mmHg (±3.3 SD) in the last follow-up. The mean percentage of IOP reduction was 17.9% and 7 eyes (40%) had IOP reduction >20%. No statistical significant difference in relation to demographic characteristics of the patients. The greatest reduction was achieved in the 1(st) day with a median of 2.00 (P < 0.001). A tendency to achieve a higher reduction of IOP in patients with higher baseline IOP was found but was not statistically significant. No adverse reactions occurred. CONCLUSIONS: MLT slightly reduced the IOP in a few patients with uncontrolled OAG for a very short time and may not be suitable for these patients.