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Research Article Open Access
The purpose of the study was to investigate the changes in the endothelial cell count and cell’s polymegathism and pleomorphism after selective laser trabeculoplasty (SLT) in open-angle glaucoma (OAG). SLT has been performed on 18 patients (22 eyes). Each patient underwent confocal microscopy 1 h prior to the laser surgery and then 1 h, 1 day, 1 week, and 1 month after SLT. The obtained micrographs were then analyzed in order to study the infl uence of SLT on the corneal endothelium. The difference in the mean corneal endothelial cell density, polymegathism, and pleomorphism at different time intervals was found to be statistically signifi cant. The mean endothelial cell count was reduced in 1 week after SLT from 2442 6 326 per mm2 to 2352 6 460 per mm2; polymegathism was increased from 46.1 6 11.7% to 50.9 6 13.4%; and pleomorphism was decreased from 46.2 6 11.2% to 40.9 6 7.2%. Cellular damage was also observed on the micrographs that were made in the follow-up after SLT. The highest quantity of damaged cells was observed 1 h after SLT. After 1 month, endothelial integrity was completely restored. If damaging does occur after SLT, it is not severe enough to induce serious changes in the endothelial monolayer. Nevertheless, extra care should be taken when choosing an approach to treating patients with low endothelial cell density.