VIRUS DISEASES WITH OCULAR COMPLICATIONS
Virus diseases and the closely related rickettsial infections may involve the eye secondarily. The complications of the virus group of diseases are so well known that it will suffice here merely to mention the varieties that may commonly affect the eye, such as measles, rubella, rabies, psittacosis, the common cold, influenza, encephalitis, lymphocytic choriomeningitis, poliomyelitis, Australian X type of encephalitis, louping ill, Rift Valley fever (enzootic hepatitis), yellow fever, pappatacci fever, dengue, vaccinia, mumps and lymphogranuloma venereum.
Rare and Recent Forms.
—In rare instances virus diseases affecting animals only may produce ocular complications in human beings. Babel1 described a serofibrinous iritis accompanying pseudotyphus meningitis (swineherd's disease) and cited Fatzer, who noted papillitis as a complication in his case. In Babel's case cultures of the aqueous inoculated into the anterior chamber of the eye of the rat, mouse and guinea pig gave negative results.One