Disorders of the lacrimal system apparatus.

Epiphora, or excess tearing, is a common problem in infants. The most frequent etiology of this disorder is a nasolacrimal duct obstruction. There are other conditions, however, some of which can be serious, which can cause tearing. Infections of the eyelids and conjunctiva, an undiscovered foreign body, and congenital glaucoma are among the conditions that must be ruled out when any child presents with excessive tearing.