250 BACTERIOLOGY OF THE EYE 



grow, like coli, on agar and gelatine, but form no gas on sugar media. On potatoes 

 they form a yellow scum, becoming later brownish. They are very pathogenic for 

 guinea-pigs. 



Galtier and Conte (Ann. d'ocul., 1902, cxxviii., p. 300) obtained a fatal general 

 infection on the conjunctiva of rabbits. On inoculation in various parts of the 

 globe nodules formed ; these ulcerated, and finally the eye was destroyed. Optic 

 neuritis occurred, proceeding from the interior of the eye (Tedeschi, Annali di 

 OttaL, xi., p. 96; Eef., Ann. d'ocul., 1893, T. ex., p. 216). 



[' Actinomycosis of the conjunctiva' has not yet been observed. The cases of 

 De Vincentiis (' Lavori della Clin. ocul. di Napoli ') and of Demicheri (Arch. 

 d'ophth., 1899, p. 102), which are thought by many to be examples of this con- 

 dition, are really concrements of the conjunctiva as described by Fuchs and Winter- 

 steiner (cf. p. 286)] . 



6. Soor. 



Soor has been described on the conjunctiva by Pichler in a case of pseudo- 

 membranous conjunctivitis ; it occurred along with Streptococci and some double 

 bacilli. 1 In a second case by the same author 2 a child was suffering from scarlet 

 fever, whooping-cough, and chicken-pox ; a severe inflammation of the conjunctiva, 

 with necrosis of both corneae, occurred, and in the greyish-white, dry, sour-smelling 

 scum which covered the eyes, and occurred also in the mouth and nose, masses of 

 soor were found. 



In a case of pseudo-membranous conjunctivitis, Pichler found soor 

 on the conjunctiva, along with Streptococci and double bacilli (Beit. z. 

 Aug., 1896, Heft 24, S. 1). According to Plaut (K. und W. Handbuck, 

 1903, Bd. i., S. 595), infection of the cornea with soor produces in 

 rabbits an appearance which resembles keratomycosis. When it is 

 introduced into the anterior chamber, a mouldy growth in the inside of 

 the eye results. 



7. Parinaud's Conjunctivitis. 



The bacteriological findings in Parinaud's conjunctivitis are not 

 uniform. In the collected literature of Verhoeff and Derby, Kayser 

 and Hoor the findings were often quite negative ; in other cases only the 

 usual Stapliylococci and B. xerosis were found. Homer and Villeneuve 

 found the Streptococcus. Scholtz in his case repeatedly found a pure 

 culture of a Gram-negative bacillus with polar-staining. It was non- 

 motile, did not form spores, and could be grown on all the ordinary 

 media, with the exception of potatoes ; it would grow at room temperature 

 quite well, and was a facultative aerobe. Bagged, finely granulated, non- 

 liquefying grey colonies grew on gelatine, also on agar ; on Lbffler's 

 blood-serum the colonies were punctate. The length of the bacilli 

 was 0*5 to 1'5 /*, and the breadth about the half of this ; in the tissues 

 they were longer, and in old bouillon cultures shorter, almost like 

 cocci, and often in chains. They were pathogenic for mice and fowls. 



1 Beitrage zur Augen., 1895, p. 24. 2 Z. f. A., 1900, iii. Ergaiizungsheft, p. 669. 



