62 ENTROPIUM OPERATION. 



Ligation of the duct is accomplished by passing a strong 

 silk thread beneath the duct by means of a curved aneurism 

 needle, carrying the ligature around the duct and tying 

 with a surgeon's knot. The parotid duct \wa.y also be 

 previously split and an internal wound made at the point of 

 ligation. Close the skin wound by means of a continuous 

 suture and cover the operative surface with iodoform 

 collodion or with wound gelatine. 



9. ENTROPIUM OPERATION. 



Instruments. Razor, scissors, convex scalpel, tenaculum 

 and ligation forceps, tenacula, needle holder, needles, thread, 

 absorbent cotton. 



Technic. Quiet adult horses may be operated upon in 

 the standing position with the aid of local anaesthesia, other 

 horses and small animals should be secured in lateral re- 



FlG. I. 

 Eutropium operation on the superior and inferior eyelids of the dog. 



cumbency preferably upon the operating table. Shave and 

 disinfect the skin of the inverted eyelid. Grasp the skin of 

 the eyelid midway between the inner and outer canthi 

 with the forceps and elevate a skin fold parallel with the 

 border of the eyelid to such a height that the inverted 

 member assumes its normal position. Pass a finger into the 



