73 



CATARACT. 



Cataract is opacity of the crystalline lens. No treatment will 

 restore it to its normal condition. 



CHAPTER IX. 



DISEASES OF THE FEET. 



CORNS. 



A corn is the result of a bruise, involving the structures of the 

 sensitive sole, appearing as a reddish spot due to congestion of 

 blood in small ruptured vessels in the triangular space included 

 between the bars and the wall at the heel; occuring in the fore 

 feet. 



Treatment. — Remove the shoe, give exit to pus if the corn has 

 festered, then poultice. The radical cure, however, is to be 

 e:£ected by proper shoeing. Do not allow the shoe to bear on 

 the corn. 



THRUSH. 



Thrush is a disease of the frog, characterized by an offensive 

 discharge. 



Symptoms. — At first there is simply an increased moisture in 

 the cleft of the frog, accompanied by an offensive smell. After 

 a time a considerable discharge takes place — thin, watery, and 

 highly offensive — changing gradually to a thicker, putrid matter, 

 which rapidly destroys the horn of the frog. 



Treatment. — As a rule the diseased and ragged portions of the 

 horn are to be pared away, the foot poulticed for a day or two, 

 the cleft of the frog and the grooves on their edges to be cleaned 

 and well filled v,ith dry calomel, blue vitriol, or alum; if the dis- 

 charge is profuse the dressing should be changed daily, other- 

 wise it may be left on for two or three days at a time. As the 

 disease is due to filth the horn must be kept clean and dry, and 

 if necessary a leather boot can be put on. 



CANKER. 



The symptoms of this disease are strongly marked, and consist 

 of an abundant, fetid, colorless discharge from the frog or sole, 



