Purulent Conjunctivitis. Bleyinorrhcca. 367 



with the particular pus microbe present, and with the virulencj^ 

 of such microbe in the particular case. In keeping with the 

 greater fertility of microbes in the warm season, these affections 

 have been more commonly met with in summer than in winter, 

 and where the animals are kept in filthy surroundings rather than 

 otherwise. This is above all true of swine. Muller records a 

 wide spread epizootic of gonorrhoeal ophthalmia in dogs in Berlin 

 and environs in 1883. In different ca.ses, however, he failed to 

 induce disease in the eyes by direct inoculation with the preputial 

 secretion. Heinman equally failed with the gonococcus of man 

 in inoculations on the eyes of rabbits, and dogs. Frohner, how- 

 ever, succeeded in infecting the eye of the dog by applying the 

 gonorrhoeal discharge of man. 



Infecting inoculable, purulent ophthalmia has been reported 

 in the horse (Vermast, Sobornow, Blazekowic, Menard, Moller, 

 Leclainche), in .sheep (Repiquet), and in goats (Mathieu). 

 Again Blazekowic found in an infectious ophthalmia of horses, 

 dogs and cats a microbe which was like that of malignant oedema. 



The symptoms are those of conjunctivitis with especially free 

 production of pus, and a tendency to chemosis or to follicular in- 

 flammation in the depth of the conjunctival sac, with irregular 

 swellings of the lymph bodies. The pus accummulates in the 

 inner canthus, inside the lids and along their margins, and tends 

 to mat them together. The diagnosis depends on the rapidity 

 and severity of the course of the malady, on the depth of the con- 

 gestion and on the profuse .suppuration. 



Trcatjnent. Astringent and antiseptic lotions are especially 

 indicated. Mercuric chloride (i :500o), boric acid (2:100), 

 creolin (1 : 100), salicylic acid (1 : 1000), silver nitrate (i : 200). 

 It is not however enough that these should be applied externally ; 

 they should be freely injected under the lids at all points so as to 

 act on the deepest portions of the conjunctiva, and this should be 

 repeated once or twice daily. Or they may be applied with a .soft 

 brush. In a specially virulent outbreak silver nitrate (2 : 100) 

 or pyoktannin (i :iooo) solution may be used. Setons and 

 bli.sters, laxatives and cooling diuretics ma^' be employed as in 

 the severe types of simple conjunctivitis. 



