TRAUMATIC CATARACT. 3II 



with saturated solution of zinc sulphate. Improvement was only tem- 

 porary ; in a few weeks the ej^elids and surrounding subcutaneous tissue 

 became involved. During the succeeding weeks masses of extremely 

 foetid new growth were several times removed. Owing to continued 

 spread of the growth the animal was at length killed. 



Autopsy. — The orbit was occupied by a foul, stinking mass of broken- 

 up tissue of a dirty brown colour, the eyelids were enormously thick- 

 ened, and the eyelashes replaced by a border of cicatricial tissue. 

 The extruding mass measured five and a half inches in diameter, and 

 the surrounding swelling about nine inches. Beneath the skin was a 

 layer several inches thick of repulsively smelling necrosed new growth, 

 presenting the characters of carcinoma. The cranial bones were 

 absolutely healthy ; the growth appeared to have originated either in 

 the eyeball itself or from the peri-orbitale. 



No visceral metastasis or septic infection was noted on post-mortem, 

 and the cow's continued good health until a fortnight before slaughter 

 contra-indicated such a condition. 



Microscopical examination confirmed the diagnosis of carcinoma. 



Mr. Breakall's case, described by Prof. McFadyean, Joitrn. Cotnp. Path. a7jd Therap., 

 1893, p. 365. 



TRAUMATIC CATARACT. 



12. Four-year-old English terrier. Brought for examination on the 

 29th July, 1897. 



Two days before this animal while playing had torn the right eye 

 on a piece of iron wire projecting from a grating. The wound was 

 treated with dilute acetate of lead lotion. 



At the time of our examination the eye was closed, weeping, and 

 very sensitive. After applying cocaine we were able to estimate the 

 gravity of the injury. The cornea was perforated a little below its 

 centre by a narrow opening, from which escaped aqueous humour. 

 The margins of this opening were fairly regular, and slightly swollen. 

 In the lower portion of the anterior chamber was a reddish haemor- 

 rhagic deposit, but no foreign body was present. 



Treatment. — Careful disinfection of the cornea, conjunctiva, and 

 eyelids by warm creolin solutions, and frequent instillation into the 

 eye of a warm solution composed as follows : 



Creolin . . . . • 5° minims. 

 Boiled water . . . . i pint. 



The patient was brought back each week. The extravasated blood 

 in the anterior chamber gradually became reabsorbed. In spite of 

 considerable granulation around the margins of the perforation in the 

 cornea healing occurred rapidly, and without acute complications. 

 The opacity of the cornea and wound gradually diminished, and finally 

 completely disappeared ; but, in proportion as the cornea grew clearer, 

 we were able to detect another change in the deeper portion of the 

 eye, viz. the formation of a cataract. This change proceeded rapidly. 

 Three months after its appearance vision on this side was destroyed. 



By the following May there only remained a very trifling depression 



