EXTRACTS FROM FOREIGN JOURNALS. 
467 
seemed equally free from injury. In this respect this case 
differed very materially from the one recorded some time ago 
wieie nerves and vessels and muscles were all bound to- 
ge ler y dense fibrous tissue. The lameness in the two cases 
were practically identical.-/^/. 
ARSENIC IN SPECIFIC OPHTHALMIA. 
By R. C. Ikying, F.R.C.V.S. 
I use the term “ specific ” in this connection because it 
has been so used before, but 1 mean nothing more than that 
the inflammation of the eye did not arise from any apparent 
Li March of last year I was desired to see a gray hack 
which had only been in town about ten days. Both eyes 
were closed and tears were running from between the eye- 
1 S ' '' 0,1 t ie e >’ e c °ulcl be seen, the whole anterior surface 
was cloudy and the conjunctival membrane was much in¬ 
jected Warm fomentation was ordered and an aperient 
given, but little benefit was derived from this treatment dur¬ 
ing the two days it was tried, excepting that the conjunctiva 
seemed less irritable and not so red as before. The eye itself 
could be better seen, and instead of the cloudy appearance 
hist noticed I discovered that the cornea was not much 
a tered, but the aqueous humor as seen through it seemed 
cloudy and blood-stained. On inquiring if the horse had ever 
been similarly affected I was told it had, just about a month 
previous to this attack. I then diagnosed the case as one of 
periodic ophthalmia and treated it with a colyria of sulphate 
of zinc, ten grains to the ounce of water. I also administered 
arsenic in five grain doses daily. The eyes began to improve 
rapidly—the upper part of the aqueous chamber becoming 
clear, whilst the lower portion became less milky and more of 
a clouded purple tint. It seemed as though blood had been 
effused into the humor and was slowly gravitating to the 
ower part. Gradually all the cloudy and purply appearance 
o. the eye disappeared, and at the end of three weeks both 
eyes seemed quite normal in appearance. 
