Patients with open-angle glaucoma may be candidates for angle surgery, which includes canaloplasty and goniotomy. Put simply, viscocanalostomy and canaloplasty are surgical procedures offering an alternative to trabeculectomy. Your Pacific Eye Institute Surgeon will work to enlarge your eye's drainage system (Schlemm's canal) to allow increased fluid flow out of the anterior chamber. In both procedures, the goal is to restore the eye’s natural drainage system and provide sustained reduction of intraocular pressure.