Testing a surgical technique to prevent low eye pressure after glaucoma surgery

This trial is testing whether adding a special releasable suture inside the Preserflo device during glaucoma surgery can safely lower eye pressure while preventing a common complication called hypotony (eye pressure that becomes too low). The Preserflo is a tiny drainage device already approved in France that helps fluid drain from the eye to reduce pressure. This study will compare the standard Preserflo surgery to the same surgery with the added suture technique.

While the Preserflo device is very effective at lowering eye pressure, it can sometimes cause the pressure to drop too low after surgery, which can damage vision. Researchers want to know if adding a releasable suture can prevent this complication while keeping the treatment just as effective.