Entropion. Twming in of the Eyelid. 347 



it is well to examine carefully with the aid of oblique focal 

 illumination. 



Treatment consists in pulling out the offending hair with ciliary- 

 forceps, avoiding bending it lest it break off short and become at 

 once more irritating and more difficult of extraction. In case 

 the hair grows anew in the same direction extract it anew and 

 destroy its root with the electric cautery. Or the cilia being 

 drawn out with a smooth ring or spatula, an incision is made on 

 the inner side of this, between the tarsal cartilage and the orbic- 

 ular muscle. The skin is drawn out by plaster, or stitch, or 

 plastic operation, and the wound allowed to heal by granulation. 



ENTROPION. TURNING IN OF THE EYELID. 



In foals, puppies, hounds, with narrow fissure, and conjunctivitis, or 

 tarsitis. Permanent bandaging, orbicularis spasm. Symptoms : disappear- 

 ance of tarsus and lashes by involution. Treatment: in spasm fix by plas- 

 ter ; suture skin : excise elliptical section of skin and suture edges together. 

 Release cicatrices. 



Inversion of the eyelid or a portion of it, with consequent 

 trichiasis, conjunctivitis and lachrymation has been met with con- 

 genitally in foals (Aubry, Bourdeau, Hamon) and puppies 

 (Cadiot, Almy). Hounds have especially suffered. In the older 

 animals it is largely determined by abnormally narrow fissure, 

 and by old standing disease of the conjunctiva or tarsus, with 

 cicatricial contraction or adhesion. Persistent bandaging turns 

 in the cilia and contributes to entropion. Finally a persistent 

 spasm of the orbicularis muscle may bring it about. 



Symptoms. Trichiasis is usually, though not always, present. 



In any case the tarsus is turned inward so as to press upon the 

 front of the bulb, or even to disappear completely. Thickening 

 and distortion of the lid is a not infrequent condition. 



Treatment. Jn case of simple spasm clip or shave the hairs 

 from the lid corresponding to the lesion, and close to the tarsus 

 attach a strip of plaster. When firmly adherent draw it suffi- 

 ciently to efface the entropion and attach it to the skin of the 

 face. 



