lOO OPHTHALMOLOGY FOR VETERINARIANS 



like the former, though more severe and protracted in 

 its course, and the deep structures are more Hable to 

 become involved. One special feature is, the cornea is 

 insensitive to touch. Holocain, in i per cent, solution, 

 dropped on the cornea every two hours, is of great 

 value, together with general symptomatic treatment. 



Dentritic Keratitis. — This is a superficial type of 

 keratitis characterized by branching processes. The 

 branches have the appearance of a grayish elevated Hne 

 of infiltration. The epithelium covering these branches 

 soon breaks down, forming slight furrows. This may 

 remain superficial in character, or it may invade the 

 deeper structures of the cornea and result in perforation. 

 The disease is said to be due to malaria, though it 

 occurs frequently quite independent of malarial in- 

 fluence. 



Treatment. — When malaria exists it should be properly 

 treated. Dumb animals as well as man have this dis- 

 ease. Antiseptic washes and stimulating ointments, 

 together with general treatment, is all that can be 

 recommended. The disease is often very protracted in 

 its course and seems to resist all treatment. 



Filamentous Keratitis.— This is characterized by a 

 mass of twisted thread-like growths from the corneal 

 surface. They are composed of epitheHal cells, which 

 become elongated and have the appearance of fibrillae. 

 They often arise from the floor of an ulcer or from an 

 abrasion of the epithelium. The number of the fila- 



