84 



VETERINARY OPHTHALMOLOGY. 



•where there has been loss of substance in the conjunc- 

 tiva. In the spasmodic form may use adhesive plas- 

 ter ; paint with collodion and keep the lid in position. 



Fig. 18. 



Represents a vertical section of the upper eyelid. S, supra orbital margin : 



to, fascia tarso-orbitalis ; po, parsorbitalis ; pc, pars ciliaris of orbicularis 



muscle ; t, tarsus ; c, eyelash ; f , lower border ; d, upper border of the 



■wound ; a b, passage of suture through aponeurosis.— iVbi/es, 



In cicatricial, operative interference consists in re- 

 moving a slight strip of skin parallel with the lid mar- 

 gin and suturing, entering the suture on the conjunc- 

 tival side of the lid and drawing the lips of the incision 

 together. This will evert the lid. (See Fig. 18.) 



Ectropium. — E version of the eyelid may be 

 slight or great. Two ioviins— cicatricial, due to con- 

 traction after burns, abscesses, wounds, etc. ; conjimc- 

 tival^ when due to chronic inflammation and swelling of 

 the conjunctiva, which separates the lid margin from 



