AIM: To describe the role of endoscopic transnasal canaliculorhinostomy (ETC) in refractory common canalicular obstruction (CCO) associated with an absent or unidentifiable lacrimal sac. METHODS: The records of patients with refractory CCO who underwent ETC at the Eye Hospital of Wenzhou Medical University from October 2007 to December 2016 were retrospectively reviewed. RESULTS: Fift... https://www.diegojavierfares.com/super-save-St-Patricks-Day-Teacher-Shirt-Personalized-Name-Teacher-Shirt-Teacher-Gift-Shamrock-Leopard-Rainbow-St-Patrick-s-Day--great-buy/