Uncategorized World Glaucoma Congress to Feature Symposium on XEN Gel Stent for Minimally Invasive IOP Reduction by Business Wire • 2015/06/04 • 0 Comments ALISO VIEJO, Calif.--(BUSINESS WIRE)--AqueSys, Inc., manufacturers of the XEN Gel Stent, is hosting a symposium at the World Glaucoma Congress June 7 in Hong Kong to present the benefits of the minimally invasive device in reducing IOP.