338 Veterinary Medicine. 



food may be furnished in a sack hung from the ceiUng and cut 

 down one side. In this way the animal may be absolutely pre- 

 vented from rubbing the itching sore against any solid body, and 

 thereby interrupting the healing process. Another method, is to 

 apply a hood of stiff material with a metallic guard for the face, 

 having bars extending from above downward and arched outward 

 so that they shall effectually protect the eye in any attempt at 

 rubbing. 



DEFICIENCY OF THE EYEIvIDS. COI.OBOMA PAI,PE- 



BRARUM. 



The term coloboma representing merely a hiatus or deficiency 

 is applied to different parts of the eye according as there may be 

 a lack of substance of the part in question : — Coloboma palpe- 

 brarum (deficiency of the palpebrse or lids), C. iridis (perfora- 

 tion of the iris), and C. choroideae (partial absence of the 

 choroid). 



Coloboma palpebrarum is usually congenital and takes the 

 form of a vertical notch on the upper lid, separating its two 

 lateral parts into independent flaps. According to the breadth 

 and depth of the notch are the extent of the exposure of the 

 bulbar conjunctiva and the liability to irritation and infection by 

 foreign bodies. The same condition of things will occur trau- 

 matically and require identical measures of repair. These con- 

 sist in paring the edges of the notch and bringing them accu- 

 rately together with cat gut, silk or quilled suture, the approxi- 

 mation being rendered more perfect by the application of col- 

 lodion, shellac or gelatine mixture (see wounds of eyelids). The 

 vascularity and extensibility of the tissues of the lids greatly 

 favor a kindly healing. Rubbing of the eye must be guarded 

 against as advised under wounds of the eyelids. 



