Dacryocystitis

Dacryocystitis is an infection or inflammation of the lacrimal sac in the inner corner of the eye, which drains tears into the nasal cavity. This disorder develops when the nasolacrimal duct, which connects the lacrimal sac to the nose, becomes obstructed, causing tears and mucus to accumulate in the sac. Dacryocystitis can be acute or chronic, with the former being more severe and resulting in swelling, redness, and warmth at the inner corner of the eye, as well as profuse tearing and discharge.
Bacterial infections primarily cause dacryocystitis, following a blockage in the tear drainage system. The blockage can be congenital, meaning it is present from birth, or it can develop later in life as a result of illnesses such as sinus infections, trauma, or age-related changes. Congenital dacryocystitis is frequent in neonates, although adults are more likely to have acquired variants.
Dacryocystitis commonly responds to antibiotic treatment. In severe or recurring cases, surgery may be needed to remove the blockage or add a new drainage tube called a dacryocystorhinostomy (DCR). Early identification and treatment are critical for avoiding consequences such as infection spread.