430 
I 
W. H. DALRYMPLE. 
university, February 4, was a little bay horse, about 14 or 1414 
hands high, and with a decided leaning to the side of the type, 
u scrub.” The small worm or parasite could be distinctly seen 
with the naked eye, our eye, swimming actively about in the 
aqueous humor which occupies the anterior chamber of the eye, 
just behind the cornea. The length of the filaria was about 50 
millimeters, or in the neighborhood of two inches. 
Before operating, all the instruments that were to be brought 
into use were rendered sterile by immersion in a 3 per cent, 
aqueous solution of carbolic acid. The front portion of the 
eye, the cornea, was ansesthized by the use of a 4 per cent, solu¬ 
tion of cocaine. After all sensation was lost, the cornea was 
then opened with a delicate lancet, the incision being made to 
one side of the line of vision, and the watery humor allowed to 
escape. It was hoped that the parasite would be forced out of 
his temporary habitat by the flow of the humor, but instead, he 
wriggled to the opposite corner of the eye and became stranded 
from want of water to disport in, and by collapse of the cornea, 
‘so that our first incision was of very little use to us. Partly due 
to the influence of the cocaine, perhaps, and also to the collapse 
of the cornea, the worm became almost stationary, and a second 
incision was then made through the cornea, right down on to 
him, and which, by the aid of a delicate pair of forceps we were 
enabled to get hold of and extract successfully. 
The horse belonged to a negro who took him home to the 
country, a distance of about six miles. He was given a pre¬ 
scription for a mild antiseptic and astringent collyrium (eye¬ 
wash), with directions for use. If carefully treated, there is no 
reason why the operation on the eye should not result favora¬ 
bly, as the fluid will be again secreted, and the organ resume 
its normal condition. If neglected, opacity will most likely 
take place and blindness ensue. As the owner has not as yet 
returned to report progress, we are unable to give the positive 
result, which we hope, however, may be satisfactory. Referring 
to the parasite, the “ filaria papillosa,” it may be said to be 
somewhat rare in the United States, that is, it is by no means 
