Movement of Internal Canalicular Orifice in Association With Blinking: Direct Observation After Dacryocystorhinostomy – Corrected Proof

Purpose: To examine movement of the internal canalicular orifice with blinking and lacrimal drainage under endonasal endoscopic observation after dacryocystorhinostomy.Design: Observational anatomic study.Methods: Twenty internal canalicular orifices (right 9, left 11) from 15 patients (age range: 44-77 years) who underwent endoscopic endonasal dacryocystorhinostomy were prospectively examined. The patients sat on a chair with the chin projected slightly upward while digital images were taken. After examining the movement of the internal canalicular orifice with blinking, the patient's eye was stained with fluorescein dye, and diffusion from the orifice was examined with blinking.Results: The internal canalicular orifice closed during eyelid opening, although (Read more...)

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