Analysis of the results of combined optimized YAG-laser trabeculostomy technology in the treatment of primary open-angle glaucoma

Abstract

Two groups of patients were included in the study: the control group (prospectively) was 65 patients (65 eyes) with POAG I–II st. before and after SLT, and the main group (prospectively) was 60 patients (60 eyes) with POAG I-II st. before and after optimized YAG-laser trabeculostomy technology. Using OCT of the anterior segment of the eye the collector channel were localized relative to the Schlemm’s canal. After surgery, monitoring was performed after one day, one month, 3, 6, 12, 24 months. After optimized YAG-laser trabeculostomy, a pronounced hypotensive effect was observed as early as the first day after surgery and was 30 %, whereas with SLT the maximum hypotensive effect was observed 1 month after surgery (21.5 %). After optimized YAG-laser trabeculostomy, the hypotensive effect was maintained at 30.1 % and was 26.2 % of the initial level 2 years later. Combining optimized YAG-laser trabeculostomy technology in comparison with SLT offers faster IOP reduction to individual values, a more pronounced and sustained hypotensive effect (30 %), and allows more precise surgery in the projection of collector tubules using permissible laser energy values.