“…Hence, a prolonged placement may cause complications easier, such as migration, occlusion, dislodging, and infection, all of which usually require replacement or removal of the tube within 1-year postoperative. 23 , 24 , 25 Compared to other types of exposed tubes, a lacrimal tube is completely isolated from the natural sterilization of the inner body, which might explain why the tube in the current case was tolerated for 2 decades. Silicone material, itself, has proved to be advantageous under harsh conditions, such as exposure to hydrochloric acid or irradiation, and biological inertness has been reported in the lacrimal duct using an animal model.…”