Vaiciuliene R, et al. - The goal of this paper was to investigate the aqueous outflow system through channelography with fluorescein during non-penetrating glaucoma surgery (canaloplasty or phacocanaloplasty). Furthermore, it identified the associations with preoperative and postoperative intraocular pressure (IOP). The outcomes illustrated a link between a larger number of defined visible superficial connections to collectors, after injection of fluorescein into SC with a more pronounced IOP decrease after non-penetrating glaucoma surgery.