By purulent ophthalmia we usually understand that form of conjunctivitis characterized by a flow of pus and due to gonococcic infection, and from this standpoint I will discuss this question. The forms of purulent conjunctivitis of gonococcic origin, which are the most common, are ophthalmia neonatorum, the purulent ophthalmia of the adult, and a third form, quite rare in some localities, namely, the purulent conjunctivitis of young boys and girls.
As "an ounce of prevention is worth a pound of cure," I shall presume that we are apprised of the possibility of infection in any given case, either remotely or immediately, and hence shall refer to the prevention, if possible, in any such given case. Prophylaxis in ophthalmia neonatorum is so well known and thoroughly established that simple reference to this important procedure at once suggests Credé's method, introduced in his practice in the Lying-in Hospital of Leipzig in
PRICE GH. TREATMENT OF PURULENT OPHTHALMIA.. JAMA. 1907;XLIX(21):1761-1766. doi:10.1001/jama.1907.25320210033001i