FCI S A S FCI 20 22 S1.1455 RITLENG+

An implantable short tube intended to provide a bypass route for tear drainage from the corner of the eye into the nasal cavity, or a paranasal sinus, as treatment for pathologies of the tear drainage system in association with functional or obstructive epiphora; it may also be intended to facilitate saline solution irrigation to a paranasal sinus (e.g., ethmoid sinus) to manage chronic rhinosinusitis. Also referred to as a lacrimal stent (e.g., Lester Jones type), it is implanted after surgery to dilate or maintain a surgically-created passage [e.g., dacryocystostomy/dacryocystorhinostomy (DCR)], and is made of glass or synthetic polymer materials (e.g., silicone).