Selective laser trabeculoplasty after canaloplasty improves the efficacy of intraocular pressure reduction in eyes with open angle glaucoma

摘要

Glaucoma is the second cause of blindness worldwide, and it has an increasing trend, where primary open angle type is the most common one. Surgical interventions are recommended for uncontrolled cases and patients with poor compliance to treatment. Canaloplasty is a highly recommended procedure, especially among patients at high risk of infection or bleeding. Advanced technology facilitates canaloplasty by using a microcatheter in the Schlemm's Canal to increase the drainage through the canal. Studies have been published demonstrating the long-term efficacy and safety of canaloplasty; however, a percentage of patients may not achieve the target pressure postoperatively. Consequently, in order to prevent disc damage, instead of adding medications or repeating surgery, selective laser trabeculoplasty (SLT) may be an additional option to achieve the target pressure. In the current study, we aimed at investigating the efficacy of adding SLT after canaloplasty to achieve a lower intraocular pressure (IOP) level.