246 
FRANK H. MILLER. 
since under those conditions it seems to have quite as great a 
tendency to involve lymphoid tissue in the palpebral conjunc¬ 
tiva as that lying hidden behind the tertiary membrane, and 
once the general inflammatory condition of the membrane sub¬ 
sides, the swollen tissue almost invariably disappears. It is in 
these cases a simple inflammatory hypertrophy, not truly an 
hyperplasie as the microscope reveals in examination of the 
majority of these cases in question. 
Pre-existing conditions in the animal seem to play an extremely 
important role. While I am fully convinced of the close re¬ 
lations that such local irritants as mentioned by Frohner bear to 
the presence of the patches of granulation, I cannot deny that a 
great percentage of the cases come especially among dogs, where 
from the nature of their external surroundings such influences 
would at least in great part be entirely wanting. That it should 
prevail among certain species of animals, as the dog, more than 
others, as the horse and cat, and that even certain types of ani¬ 
mals should under similar circumstances be more frequently 
affected than others of the same species, seems to me to lend 
color to the possibility of anatomical as well as physiological 
factors being involved in each individual case. 
I have seen this disease set up with the most disastrous re¬ 
sults in valuable kennels from the use of lime wash upon the 
walls, and have treated a great many animals suffering equally 
when the cause could not be traced so definitely, and I must 
say plainly that I believe predisposition has much more to do 
with this condition than we have hitherto supposed. 
Regarding treatment we have several alternatives, the de¬ 
sired end of all being to remove the rough, irritating granular 
surface as quickly and safely as possible, and thereby check the 
untoward symptoms which have already appeared in the eye 
proper from their ceaseless friction. 
Since in very many of these cases the corneal symptoms are 
quite grave at the time the animal is presented, the period when 
mild medicinal treatment might suffice to at least hold matters 
in check has been lost to the veterinarian. I have made use of 
