Dacryocystitis is an infection of the lacrimal sac, often resulting from nasolacrimal duct obstruction (NLDO), which can lead to tears not draining properly. This condition can affect individuals ...

Culture and cytology of the secretions can confirm infection. This is why epiphora, or watery eyes with excessive tearing, resulting from a blocked nasolacrimal duct shows milky secretions from ...

Blocked tear ducts—also called nasolacrimal duct obstruction (NLDO ... outer layer of the eye), are usually caused by an eye infection. However, eye disorders such as severe dry eye can also ...

One can divide lacrimal drainage system tests into functional and anatomical evaluations. The functional (physiological) tests are designed to assess tear flow under natural physiological ...