Although this is an understandable concern, the only thing left in the eye after Canaloplasty is a suture. The material used in this suture (polypropylene) has been used in eye surgery for decades and has a very good safety record. In fact, this material has been used in the eye far longer than most of the materials used to make the intraocular lenses (IOLs) in modern cataract surgery. It is very unlikely that this suture would ever erode into or through the eye wall as it is securely threaded through Schlemm’s canal. In the few reported cases where the suture has eroded into the anterior chamber it seldom causes any problem.