A watery eye (epiphora) is caused by blockage of the tear drainage system — the nasolacrimal duct — which normally drains tears from the eye into the nose. Dacryocystorhinostomy (DCR) creates a new drainage passage to bypass the blockage.
Causes of Blocked Tear Ducts
- Age-related narrowing of the nasolacrimal duct
- Chronic infection or inflammation (dacryocystitis)
- Previous sinus surgery or facial trauma
- Nasal polyps or tumours blocking drainage
Endoscopic DCR
Endoscopic DCR is performed through the nose (endonasally) without any external incisions on the face. A new opening is created between the lacrimal sac and the nasal cavity using a small laser or drill, allowing tears to drain normally.
Benefits of Endoscopic DCR
- No visible scar on the face
- Shorter recovery time than external DCR
- Highly effective — success rates over 90%
- Can be performed under local or general anaesthesia
Recovery
A small silicone tube is placed in the new drainage passage and removed in the clinic after 6–8 weeks. Most patients experience immediate improvement in tearing.