- Punctal stenosis
- Tear duct foreign body removal
- DCR surgery
Tears are produced by glands around the eye. These tears normally drain through two very small openings call puncta. Both of the puncta are located in the corner of the eye close to the nose. The tears eventually travel into the lacrimal sac, then down the nasolacrimal duct which lies in a bony canal, then opens into your nose. Tears are constanly draining into the nose and throat but most people are unaware of this.
A very common cause of watery eyes is a blocked nasolacrimal duct. Surgery to overcome this blockage is called “dacryocystorhinostomy” or DCR.
In order to confirm the site of the obstruction causing the watering, lacrimal syringing and gentle probing is done.
The aim of this operation is to relieve a watery, sticky eye caused by blockage of the tear duct (nasolacrimal duct) situated between the tear sac (lacrimal sac) at the corner of the eye and the tear outflow passage into the back of the nose.
DCR consists of creating a direct connection between the tear sac into the nose, bypassing the blockage and allowing tears to drain normally again. Usually some soft silicone tubes are placed, which are removed after several months after surgery.
There are two methods of doing this:
- Externally (from the outside, via a short skin incision)
- Internally (from inside the nose: endonasal endoscopic)