| Popis: |
The method of choice in the obstruction of the tear pathways is dacryocystorhinostomy (DCR). It is indicated in cases of an obstruction of the lower segment of the lacrimal apparatus. It cannot be applied in cases of the obstruction of the upper segment of the tear pathways. In such pathologic conditions, the new tear pathway is formed from a part of the mucous membrane of the lateral nose wall and from a part of the mucous membrane of the septum. In a form similar to a tube, the mucous membrane of the nose will be sewn up with the mucous membrane of the conjuctiva. Direct suture is made possible by canthotomy, and, therefore, this surgery is called "Direct Cantorhinostomy". |
