What is the cause of crusty drainage from infants eye?

Tear duct obstructio: Most common is a tear duct obstruction, but need to be evaluated to rule out eye infection.

Drainage from eye: The most likely cause of crusty drainage from infants eyes especially in the first few months of life is obstruction of nasolacrimal duct . It requires massaging the area beteween eye and nose . It usually gets better on its own. Rarely requires surgery. Other causes of eye crusting/discharge is pink eye (conjunctivitis).