DISEASES OF THE EYE, 297 
quently exhibited as a “snake in the eye.” When present in the 
eye it causes inflammation and has to be removed through an incision 
made with the lancet in the upper border of the cornea close to the 
sclerotic, the point of the instrument being directed slightly forward 
to avoid injury to the iris. Then cold water or astringent antiseptic 
lotions should be applied. 
Filaria conjunctive, resembling Setaria equina very much in size 
and general appearance, is another roundworm which has been found 
in the eye of the horse. 
The echinococcus, the cystic or larval stage of the echinococcus 
tapeworm of the dog, has been found in the eye of the horse, and a 
cysticercus is also reported. 
1 This worm is normally a parasite of the peritoneal cavity, and is probably transmitted 
from one horse to another by some biting insect which becomes infected by embryos in the 
blood.,—M. C. Haun. > 
