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DACRYOCYSTORHINOSTOMY (DCR)

(mostly) From EyeWiki AAO & Medscape

Dacryocystorhinostomy (DCR) surgery is a procedure that aims to eliminate fluid and mucus retention within the lacrimal sac, and to increase tear drainage for relief of epiphora (water running down the face). A DCR procedure involves removal of bone adjacent to the nasolacrimal sac and incorporating the lacrimal sac with the lateral nasal mucosa in order to bypass the nasolacrimal duct obstruction. This allows tears to drain directly into the nasal cavity from the canaliculi via a new low-resistance pathway.

Indications for DCR surgery:

1. Primary acquired NLDO
2. Secondary acquired NLDO, such as due to prior midfacial trauma, chronic nasal or sinus inflammation, nasal surgery, neoplasms, dacryoliths
3. Functional obstruction of outflow, due to lacrimal pump weakness or after facial nerve palsy
4. Congenital NLDO after failed prior probing or intubation
5. History of dacryocystitis

Primary Options for DCR:

1. Primary external dacryocystorhinostomy-

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