An implant for treating an ocular disorder comprises an inlet portion configured to extend through a portion of a trabecular meshwork of an eye, and an outlet portion configured to extend into Schlemm's canal of the eye. The outlet portion has at least one protrusion configured to exert traction against an inner surface of Schlemm's canal and the protrusion extends from the implant in a direction substantially perpendicular to a long axis of Schlemm's canal.