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the result of injuries of the cornea. The friction of the eye- 

 lashes in entropium, small sharp substances, and irritating 

 salves, are common causes of local inflammation of the 

 cornea. Diffuse inflammation is associated, as a rule, with 

 infectious conjunctivitis in cattle and sheep; and, at times, 

 appears in the course of cow-pox and sheep-pox, and of dip- 

 theria in fowls ; and in the course of influenza and the acute 

 attacks of moon-blindness, in the horse. 



Sytinjtoms when the outer layer alone is affected: As soon 

 as the cornea becomes inflamed, the animal avoids the irri- 

 tating light by partially or entirely closing the eye, and tears 

 flow down over the cheek. The cornea becomes opaque at 

 a not sharply limited spot or over its entire surface; this 

 opacity may be grayish blue, gray or light gray in color. 

 One may see this opacity best by viewing it, not from directly 

 in front of the eye, but from one side. If the inflammation 

 is of long duration blood vessels will be found in the cornea, 

 which may be seen in their conjested condition near its 

 border. When the opacity and the other symptoms appear 

 suddenly (without blood vessels forming in the cornea), re- 

 covery is quite certain to occur in a few days. The darker 

 the opacity or cloudiness the weaker the infiltration or the 

 less damage in the cornea to be repaired. Light gray and 

 white colored opacities denote intensive changes which re- 

 quire eight to ten days for their complete removal. If blood 

 vessels form in the cornea of the horse, a permanent opaque 

 spot may remain ; but in the dog the complete removal of 

 the opacity will usually occur. 



