DISEASES OF THE EYES. 



275 



Treatment. — The only method by which the worm can be 

 removed from the eye is by means of a surgical operation, and 

 consists of an incision through the cornea, allowing the aqueous 

 humor and the worm with it to pass out. This should be en- 

 trusted only to the veterinary surgeon. In some cases it be- 

 comes necessary to place the animal in a darkened box for a few 

 days, allow the aqueous humor to reaccumulate, and operate 

 again where the worm could not be removed by the first opera- 

 tion. 



STRABISMUS SQUINTING. 



Irregular action of the muscles of the eye never occur in the 

 lower animals except as a symptom of other diseases or forms of 

 poisoning. Myopia, no doubt, exists in our patients, resulting 

 from too great convexity of the crystalline lense and cornea. It 

 causes shying. In the human subject the defect is remedied by 

 using concave glasses. There is no other remedial measure 

 known; therefore the animal goe^^ without treatment. 



HYPERMETROPIA. 



This is the opposite condition, and constitutes far-sightedness. 

 This is remedied in man by convex glasses. As our patients can 

 use no glasses, we know of no remedy for the lower animals. 

 Ossification of the eye-ball is noticed sometimes. Calcarious 

 growths, melanotic deposits, and ossious deposits are sometimes 

 seen in connection with the eye. They are incurable. Ulcera- 

 tion of the cornea has been referred to under the head of staphy- 

 loma, and should be treated by touching the ulcer twice daily 

 M'ith nitrate of silver — ten grains to an ounce of water. Pay 

 particuhir attention to the animal's health. 



DISLOCATION OF THE EYE-BALL. 



This may occur in various ways. It occurs very frequently 

 in dogs fighting. 



Treatment. — If seen at once, there is a possibility of return- 

 ing the eye and keeping it in place; judicious use of bandages and 



