Nasolacrimal duct obstruction is a common cause of chronic epiphora and may frequently lead to mucopurulent ocular discharges, chronic dacryocystitis, and acute dacryocystitis. External dacryocystorhinostomy is a standard surgery in which a new passageway is established to bypass the occluded or narrowed nasolacrimal duct for the tear drainage.
CITATION STYLE
Tavakoli, M., Erickson, B., & Lee, W. W. (2017). External dacryocystorhinostomy 1 (DCR). In Operative Dictations in Ophthalmology (pp. 607–609). Springer International Publishing. https://doi.org/10.1007/978-3-319-45495-5_143
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