58 Surgical Diseases and Surgery of the Dog 



ECTROPION. 



Eversion of the edges of the lids is a rare trouble, being not 

 nearly as common as Entropion. It results from cicatricial forma- 

 tion following inflammation or injuries to the periocular tissues, but 

 may also be produced by swelling of the conjunctiva. It is gen- 

 erally seen in the lower lid and may be bilateral. 



Symptoms and Diagnosis. The condition is recognized by 

 turning outward of the lid coupled with undue prominence of the 

 conjunctiva. Through the constant exposure to which the latter 

 is subjected it is more or less inflamed. Mucus and tears are freely 

 secreted. 



Treatment. When due to conjunctivitis, scarification of the con- 

 junctiva will at time suffice, but if this fails, the operation for the 

 cicatricial form must be undertaken. This consists in excising 

 under cocaine anesthesia an elliptical piece of the conjunctiva in the 

 long axis of the lid, or if this fails, in removing a V-shaped seg- 



No. 10. Operation for Ectropion. 



ment of the lid including all the tissues and skin and bringing the 

 edges of the wound together with silk sutures. 



ENTEOPION. 



Inversion ot part or the whole of the edges of the lids is not an 

 tmcommon deformity and is frequently complicated with trichiasis. 

 It is most often seen in hunting dogs and dogs of the larger breeds. 



