Iqra3 months ago

Cause of dacryocystitis

The common cause of dacryocystitis is an obstruction of the nasolacrimal duct, which extends from the tear sac into the nose, thereby compromising the tear drainage system. This results in a build-up of tears and bacteria in the lacrimal sac. Stagnation of tears provides a favorable environment for infectious organisms to multiply and for debris to deposit. The most common bacterial pathogen associated with infective dacryocystitis in both children and adults is Staphylococcus aureus. In children, other causative bacterial pathogens may include Streptococcus species and Haemophilus influenzae. In adults, other causative bacterial pathogens may include Staphylococcus epidermidis, Streptococcus species, and Pseudomonas aeruginosa.