Comparison of Surgical Outcomes between Canaloplasty and Schlemm’s Canal Scaffold at 24 Months’ Follow-Up

The results of canaloplasty (CP) and HydrusMicrostent (HM) implantation were retrospectively compared at 24 months’ follow-up in a cohort of subjects referred to our Institution for uncontrolled IOPin primary or secondary (e.g., pseudoexfoliativeand pigmentary) open-angle glaucoma. The outcome was labelled as “complete” success, “qualified” success, or “failure” if, two years after surgery, the eyes operated on needed “no” hypotensive medications, “some” hypotensive medications, or further glaucoma surgeryto attain the target IOP, respectively. Both CP and HM implant allowed significant IOPreductions, with comparable rate of clinical success and safety profile. A slightly (albeit not significant) better trend for a “complete” clinical success was observed in the CP group.