The common eye diseases that cause teary eyes in infants are neonatal impingement and lacrimal sacculitis. The tearing of the eyes is caused by the lower eyelashes touching the eyeball, which can be determined by the child’s parents (some of the eyelashes on the lower lid are backwards towards the eyeball); while neonatal lacrimal sacculitis is caused by a blockage of the nasolacrimal duct that leads to tearing (see below for a diagram of the tear pattern). The diagnosis of neonatal lacrimal sacculitis needs to be confirmed by taking the child to the ophthalmologist for a lacrimal duct irrigation examination. The treatment for confirmed neonatal lacrimal sacculitis is: 1. If there is an increase in secretion from the eye, regular finger pressure can be applied to the lacrimal sac area (i.e., downward pressure between the medial inferior orbital margin of the lower lid and the eye) for several times, followed by antibiotic eye drops such as Tobias eye drops 3 to 4 times daily; 2. If there is no secretion, just local massage can be applied in the same way as above (i.e., downward pressure between the medial inferior orbital margin of the lower lid and the downward pressure between the eyeball). If the massage is persistent, most children can heal spontaneously; if it is still ineffective, lacrimal tract exploration can be considered after 6 months (lacrimal tract exploration is very simple and does not require hospitalization).