[Lacrimal pathology in the infant and the child].

Tearing and lacrimal pathologies are very frequent motives of consultation. The pediatrician must know the congenital dacryocele, and nasolacrimal duct obstruction by the Hasner valve imperforation, which represents the main reason of tearing of the infant. Nasolacrimal duct obstruction is treated by probing by the ophthalmologist from the third month and by probing with silicone intubation in case of failure, or in the children of more than one year old.