Dacryocystorhinostomy (DCR) is a surgical procedure to restore the flow of tears into the nose from the lacrimal sac when the nasolacrimal duct does not function.

The operation can also be performed endoscopically through the nose where an opening is fashioned in the lacrimal sac from within the nose. The advantages include lesser peri-operative morbidity, and no scar. Data suggests a slightly lower success rate than the "traditional" technique.


With the advent of nasal endoscopes, endoscopic dacryocystorhinostomy is becoming popular. In this procedure, a nasal endoscope is used to visualise the lacrimal sac through the nasal cavity. The bone covering the lacrimal sac is nibbled out. The medial wall of the sac is incised or excised, facilitating drainage of tears into the nasal cavity. This procedure avoids scarring.

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