46 ENTROPIUM OPERATION. 



8. ENTROPIUM OPERATION. 



Instruments. Razor, 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- 

 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 

 either with the fingers or 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 



FIG i. 

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



one finger into the conjunctival sac to make sure that the 

 conjunctiva is not drawn into the skin fold. Clip the fold 

 off with the scissors immediately below the forceps, remov- 

 ing an oblong piece. Between the border of the eyelid and 

 the border of the wound the skin should be left intact for at 

 least .5 cm. Ligate any bleeding vessels and close the 

 wound by means of interrupted sutures. The wound 

 may be covered with iodoform collodion or wound gelatine 

 or dusted over with iodoform-tannin. It is usually un- 

 necessary and inadvisable to cover the parts with hood or 

 other appliance since so long as the wound is healing 

 properly the animal will not disturb it. 



