Nasolacrimal Duct Obstruction and Treatment

Abstract

Nasolacrimal Duct Obstruction and Treatment

Pichai Puapermpoonsiri MD

Department of Otolaryngology, Faculty of Medicine Vajira Hospital, University of Bangkok Metropolis

Nasolacrimal duct obstruction (NLDO) is an important problem of lacrimal drainage system. This condition can be caused by many etiologies e.g. inflammation of eyes or nasal mucosa, tumor, trauma, glaucoma medications, side effect of radiation therapy, etc. NLDO will lead to lacrimal stagnation leading to bacterial overgrowth, and ultimate dacryocystitis. Many treatment approaches for NLDO are available. The surgical procedure which has long been used by an otolaryngologist or ophthalmologist is via external approach by making a midline incision between medial canthus and nasal bridge. Although this method is easy but it certainly causes facial scar. Due to the new innovation of instruments e.g. rigid telescope and camera control device, endonasal endoscopic dacryocystorhinostomy is developed. The operation is more convenient, yeilds good result, and with transnasal approach, hence leaving no scar.

Keywords: nasolacrimal duct obstruction, endoscopic dacryocystorhinostomy

Vajira Med J 2010 ; 54 : 367 - 372