DISEASES OF THE EYE. 41 



ho touclied food with them. They were entirely divested 

 of motion, and he was in consequence unable to convey the 

 oats, with which his manger was full, to his teeth. Com- 

 pelled by hunger, he made a violent effort to lick up a few 

 with his tongue, but they were nearly all rubbed off before 

 they could be conveyed to his mouth. 



The angles of the mouth are frequently lacerated, and 

 become sore by the smallness of the bit, and from the 

 unmerciful dragging of a heavy hand in either riding or 

 driving him, and also from the shortness of the snaffle. 

 This frequently induces the poll-evil. The severe excoria- 

 tion of those parts produces deep ulcers, which cannot be 

 removed while the animal is worked. Washing with a 

 solution of alum is one of the best curatives ; and if the 

 sore is callous, it must be burned slightly on the edges with 

 nitrate of silver. 



DISEASES OF THE EYE. 

 In the horse the diseases of the eye are not numerous ; 

 but they are of frequent occurrence, and often most difficult 

 to cure. 



COMMON INFLAMMATION OF THE EYE. 



Symptoms. — This malady generally makes its appearance 

 unexpectedly, accompanied by considerable swelling of the 

 eyelids, which has the effect of partially closing them, and 

 causes a discharge of watery matter, or tears. The lid 

 exhibits inflammation, and some of the vessels of the eye- 

 ball are gorged with blood. There will also be a dimness 

 in the cornea. 



Cause. — This usually accompanies a catarrh. But it may 

 also be caused by substances getting under the eyelid, such 

 as a seed of hay ; or from a blow. When inflammation 

 occurs, the eye should be carefully examined, so that the 



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