VETEEIiTARY Ol^HTHALMOLOGY. 



of sympathetic oplitlial- 

 mia. 



This primary incision 

 should be about two 

 mm. from the edge of 

 the ulcer and brought 

 out about the same dis- 

 tance on the other side. 

 The knife then cuts its 

 way out through the 

 bottom of the ulcer. 

 The incision may be 

 kept open by passing 

 a fine probe through it daily, using extreme ascepsis 

 and antisepsis, and the tension kept down until repair 

 begins. Corneal abscess may be treated in a similar 

 manner. You remember my speaking oi paracentesis 



Fig. 36. 



Fig. 87. 



of the cornea, — ^it is performed as follows : Introdce a 

 needle or blade of an ii4dectomy knife througli the 

 cornea near its margin and allow the aqueous to diain 



Fgi. 38. 



