Pink-eye 311 
gradually becomes more marked. The attacks recur 
periodically, a few weeks or a few months apart. 
The disease runs its course to total and permanent 
blindness. The blindness can be greatly delayed 
by careful treatment. During an attack, the horse 
should be placed in a darkened stall, and the same 
treatment given as for simple ophthalmia. In addition 
to this, iodid of potash, in one-dram doses, should be 
given internally as a drench once daily for four or five 
days, then withheld for an equal time, and repeated. 
Quinine, in dram doses twice daily, is also beneficial. 
Catarrhal Conjunctivitis, “ Pink-eye” 
Pink-eye is a contagious inflammation of the conjunc- 
tiva (the transparent covering of the eyeball), attacking 
horses, especially toward the spring of the year. This 
disease affects the whole system, more particularly the 
mucous membranes. It is a sort of influenza. There 
is a tendency for pregnant mares afflicted with it to 
abort. 
The eyes are red, with a thick, muco-purulent dis- 
charge. The appetite is slight, the bowels are consti- 
pated, and the temperature rises to 103° or 104°. 
Isolate the horse and disinfect the stall with ecreolin, 
ora 5 per cent solution of carbolic acid. Blanket the 
animal and keep him warm and comfortable. Give gruels 
and mashes for nourishment, and to loosen the bowels ; 
also give a heaping teaspoonful of nitrate of potash dis- 
solved in water, twice daily, to stimulate the kidneys 
and reduce the fever. Bathe the eyes with hot water 
