446 INFLAMMATIONS. 



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as seen in distemper, consists in an unnatural bluish, redness of 



" the white " of the eye, together with a film over the transparent 

 part, which may or may not show red vessels spreading over it. 

 There is great intolerance of light, with a constant watering ; 

 and, if the eye is opened by force, the dog resists most strenuously, 

 giving evidence of pain from exposure to the rays of the sun. 

 This state resembles the " strumous ophthalmia " of children, and 

 may be treated in the same way, by the internal use of tonics, the 

 pills (62) being especially serviceable. In the ordinary ophthalmia 

 the " white " of the eye is of a brighter red, and the lids are more 

 swollen, while the discharge is thicker, and the intolerance of 

 light is not so great. The treatment here which is most likely to 

 be of service is of the ordinary lowering kind, exactly the reverse 

 of that indicated above. Purgatives, low diet, and sometimes 

 bleeding, will be required, together with local washes, such as 

 (5 5) or (56). If the eyes still remain covered with a film, a seton 

 may be inserted in the back of the neck with advantage, and kept 

 open for two or three months. 



Cataract may be known by a whiteness more or less marked in 

 the pupil, and evidently beneath the surface of the eye, the dis- 

 ease consisting in an opacity of the lens, which is situated hehind 

 the pupil. It may occur from a blow, or as the result of inflam- 

 mation, or from hereditary tendency. No treatment is of any use. 



In amaurosis the eye looks clear, and there is no inflammation ; 

 but the nerve is destroyed, and there is partial or total blindness. 

 It may be known by the great size of the pupil. 



CANKER, OK INFLAMMATION OF THE EAR. 



From high feeding generally, and exposure to the weather, 

 many dogs (especially of a sporting kind) contract an inflamma- 



