When the nasolacrimal duct, the tube which drains tears into the nose, is blocked a surgical procedure is done called a DCR (Dacryocystorhinostomy), a hole is created between the tear sac and the inside of the nose.
When the nasolacrimal duct, the tube which drains tears into the nose, is blocked a surgical procedure is done called a DCR (Dacryocystorhinostomy), a hole is created between the tear sac and the inside of the nose.