A Rare Complication of External Dacryocystorhinostomy: Transient Orbicularis Muscle Weakness

In this study, we present 4 patients with transient orbicularis oculi muscle weakness following external dacryocystorhinostomy (DCR).\udPreoperative and postoperative records of 4 patients who presented with either a delay in blinking or lagophthalmos on the first\udpostoperative day were evaluated. None of the patients had a history of facial palsy or any symptom of lagophthalmos. All 4 patients\udhad undergone external DCR without silicone intubation under general anesthesia. Three of the patients had a delay in blinking, while\udone patient developed a 4-mm lagophthalmos postoperatively. A mild punctate keratopathy was observed in one patient. The condition\udresolved in all patients after an average of 8 weeks. (Turk J Ophthalmol 2014; 44: 413-5