Dacryocystitis
The usual cause of dacryocystitis is a blockage of the nasolacrimal duct, which leads from the tear sac into the nose. Dacryocystitis may occur suddenly (acute) or be longstanding (chronic). In acute infection, the area around the tear sac is painful, red, and swollen. The area around the eye may become red and watery and may ooze pus. Slight pressure applied to the tear sac may push thick material through the punctum (the opening at the inner corner of the eyelid near the nose).
| Gene Name | Chromosome number |
|---|---|
| DCXR | 17 |