78 VETERINARY OPHTHALMOLOGY. 



chance for removal. The application of ^/leZy powdered 

 calomel will assist absorption by exciting hypersemia 

 and increased tissue change. Deposits of lead may in 

 some cases be scraped away, and the ulcer which 

 results may be filled up with transparent tissue. 



Cicatricial Staphyloma is generally the result of 

 ulceration, for the floor of an ulcer, being very thin, is 

 therefore very apt to yield to the intra-ocular pressure 

 and bulge. 



In the process of healing the bulged portion is apt 

 to be covered with cicatricial tissue, and a staphyloma 

 is left, bluish-white in appearance. Remember the 

 leucoma adherans, which may be a complication. 



Kerato-conxis. — Conical cornea is a cornea cone- 

 shaped. It is a protrusion of the cornea, and its cause 

 is not very well understood. Usually congenital, but 

 vway appear after inflammations. 



Fistula of the cornea may be the result of a perfora- 

 tion, ulcer or wound. Difficult of cure, indeed. Contin- 

 ual irritation from the constant dribbling of aqueous. 

 Pacqnelin's cautery, carefully cauterizing the edges of 

 the fistula, or a delicate probe dipped in carbolic acid 

 and lightly touched to the opening. Atropine, etc. 

 A compress bandage, enjoining rest, from quiet and 

 gentle pressure. 



