This is an operation to form a new tear drain between your eye and nose when there has been a blockage. If the normal drainage passage gets blocked or narrow, you might get a watery eye or repeated eye infections.
During DCR, your tear drainage passages are opened so that the tears can drain into the nose. There are two approaches to DCR surgery: external DCR and endoscopic , endonasal DCR, often referred to as EndoDCR. They are similar operations with similar success rates.
The operation takes place through a 10- 15mm incision in the side of your nose, where a pair of glasses would rest. This heals up very quickly and is rarely visible when healing is complete in most people. As part of the procedure, small polythene rods (often referred to as tubes, although they do not assist with drainage) are positioned internally to ensure that the newly made passage remains open during the healing phase. These rods are removed after four to six weeks.
Endoscopic DCR is a minimally invasive procedure to unblock tear ducts. The operation is very similar to external DCR, except there is no cut through the skin and no scar afterwards. Access is through your nose, using a small thin camera (endoscope). As with all DCR surgery, small rods will be placed internally, positioned in the newly created passage and these will be removed after four to six weeks.