DISEASES OF THE EYES. 273 



Treatment. — It is incurable. When it results as a symptom 

 of other diseases the cause should be removed. Powdered nux 

 vomica in drachm doses may be used, or bromide of potash in 

 three-drachm doses may be tried in the acute stages. Both may 

 be administered in the feed. 



GLAUCOMA. 



A disease in which the vitreous humor loses its transparency 

 and assumes a blue color. It is a very uncommon disease, and is 

 usually associated with cataract or with amaurosis. It is gen- 

 erally seen in old animals. 



Treatment. — The condition is incurable. 



FUNGUS HAEMATODES. 



This growth is known also by the name of medullary sarcoma. 

 It is a dark colored, highly vascular tumor of a cancerous nature. 

 It is a malignant disease, and very rare. It is occasionally asso- 

 ciated with tuberculosis. If removed, it will reappear in nearly 

 every case. Unless removed at a very early stage, it admits of no 

 cure. 



Symptoms. — Slight irritation is noticed and there is a flow of 

 tears; the cornea enlarges and bursts, and a small fungoid tumor 

 makes its appearance, passes through the opening, and grows 

 rapidly until it hangs down over the cheek, collecting dirt, etc. 



Treatment. — Everything within the orbit must be included 

 in the operation, and the surface cauterized with the hot iron, 

 not only to retain the hemorrhage, but to destroy any part of the 

 malignant growth that may remain. If the patient be a cow, ox, 

 or shec)), and in a fair condition, it should be slaughtered, as the 

 disease is apt to return and cause death. 



STAPHYLOMA. 



This disease is so named because its tumor resembles a grape. 

 The cornea loses its transparency, rises above the level of the 

 eye, and even projects beyond the eyelids in the form of a whitish 

 colored tumor. 

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