Médecine néonatale et pédiatrique

Abstrait

Causes of tearing in pediatric age group

Mukhdoom Rakhshan Jameel Qureshi

There are numerous causes of childhood tearing, among them the following are the most important:  Nasolacrimal Duct Obstruction  Congenital Glaucoma  Corneal Ulcer  Conjunctivitis  Distichiasis The commonest causes of childhood tearing are nasal lacrimal duct obstruction. This is typically due to a mucus membrane obstruction at lower end of nasal lacrimal duct estimated to be present in up to 20% of new born babies. Lacrimal apparatus comprises of lacrimal gland, accessory lacrimal gland, lacrimal passage which includes puncta canaliculi, lacrimal sac and nasal lacrimal duct.