US Patent 7160264 Article and method for ocular aqueous drainage

An ophthalmic implant having a body for positioning in a recess created in the sclera, feet for positioning in the anterior chamber, and a neck between the body and the feet for positioning in a scleral opening created between the scleral recess and the anterior chamber. The implant feet extend beyond the implant body and have a curvature approximating the curvature of the anterior chamber. The implant has drainage passageways for draining ocular fluid from the anterior chamber. The passageways are formed in outer surfaces or through the interior of the implant. Interior passageways are formed in surfaces of layers of the implant or by voids in inner layers of the implant. Related methods include creating undercuts that receive outer portions of the implant body and creating a scleral opening that is longer than the implant neck.