Treatment of distal occlusion of Krupin eye valve with disk using cannular flush

A 64-year-old man with neovascular glaucoma underwent implantation of a Krupin valve with disk. On the fifth postoperative day, the patient reported pain in the operative eye; examination revealed a hyphema, an intraocular pressure (IOP) of 52 mm Hg, and no visible bleb. A bleb was reestablished and the IOP markedly decreased following irrigation of the shunt using a 30-gauge cannula through a paracentesis site.