What are the common causes of Red Eye in children?

“Red Eye,” or conjunctivitis, is a non-specific finding that simply indicates conjunctival inflammation. The vast majority of children who present with “pink eye” will have simple conjunctivitis. Other causes of a “red, teary eye” in a newborn include congenital glaucoma and nasolacrimal duct obstruction. The most common causes for the pediatric pink eye are allergic conjunctivitis, bacterial conjunctivitis, viral conjunctivitis, and blepharitis (inflammation of lid margins).