Lacrimal conjunctivitis.

In the course of an acute phase of pneumococcal conjunctivitis, a serpiginous corneal ulcer has never been reported to develop. However, if there is a pneumococcal chronic dacryocystitis and a resultant lacrimal conjunctivitis, the association with pneumococcal serpiginous ulcers is significant. This is most likely due to the fact that those serological types that are particularly virulent for the cornea have an affinity to colonize and infect the lacrimal sac.