G46 MANUAL OF MODERN FARPJER\\ 



White vitrol . . 10 grains, 



Rose-water ... 5 ounces. 



The abova may also be used for other eye complaints, as well 



as for injuries inflicted from blows, scratches, or punctures. 



When the inflammation is subdued, a bluish dimness, over 



the eyeballs, sometimes follows. In this event, sprinkle a 



little of the following powder on the eyeball : — 



Sugar of lead . . 1 scruple, 



Calomel ... 1 drachm. 



Cataract — This is a disease of the crystalline lens of the 

 eye, which becomes white and opaque, and generally of a 

 hard, horny consistence, instead of being clear and trans- 

 parent, as in its natural state. When complete, this disease 

 causes total blindness. It may be brought on by an injury, 

 and generally only afiects the injured eye. Aged dogs are 

 very subject to the complaint. 



The only remedy for this malady, is an operation which 

 is termed couching ; which should only be attempted by an 

 experienced veterinary surgeon. The operation is performed 

 in two difierent ways. In the first of these, a needle is in- 

 troduced, and the covering of the lens torn, and its contents 

 depressed into the posterior chamber of the eye, where it is 

 gradually absorbed by the vessels of the eye, called the ab- 

 sorbents. The second is called extraction^ by which the lens 

 is entirely taken out, and a small incision made with a knife 

 in front of the eye. The latter mode is most perfect, 

 and when neatly performed, is done without much hazard to 

 the eye. 



Washes are recommended for this complaint, but they are 

 very unlikely to produce a cure, although they may keep 

 down inflammation. One in very common use is Goulard's 

 extract, or the one above recommended, with which the eye 

 may be bathed twice or thrice daily. 



