This condition is characterized by obstruction of the pore carrying tears from the eye into the nose. As a result, the patient's eye has increased tear flow and, if it gets infected with a pathogen (bacteria), shows inflammation with pain and redness.

Dacryocystitis requires an otorhinolaryngologist, an ophthalmologist and a radiologist to perform a dacryoscopy. If it is necessary to drain the nasolacrimal sac, it is done endoscopically under general anesthesia and is called dacryocystorhinostomy (DCR).