VETERINARY OPHTHALMOLOGY. 



77 



of vascularity, uikI no ulcers existing, the Jequirity 

 infusion offers good results. Opacities are frequently 

 the result of corneal inflammations and cicatricial 

 deposits. While they are classified according to de- 

 gree, they are practically divided into superficial and 

 deep, the former affecting the epithelial layer, the 

 latter the parenchyma. A faint superficial opacity is 



~'*'«T. 



Fig. 89. 



Fig. 40. 



called nebula (L. fog), a thick dense one leucoma 

 (Gr. white). A cicatrix combined with prolapse and 

 adhesion of the iris is called leucoma adherans. May 

 see white, chalky deposits, which may be the result of 

 an application of lead lotion where ulceration was pre- 

 sent in the corneal tissues. Many opacities disappear 

 spontaneously in tlie young and robust. As a rule the 

 more recent and sitperficial the opacity the better the 



