350 DISEASES OF CATTLE. 



ENTROPION (INVERSION OF THE EYELID). 



In inversion of the eyelid the eyelashes soon irritate the anterior 

 face of the cornea and produce more or less inflammation and opacity. 

 The inversion may be due to the growth of a tumor within or without 

 the lid, to abscess, laceration, or injury, causing the lid to lose its 

 natural conformity to the eyeball, ulcerations, etc. Surgical inter- 

 ference, in either case, becomes necessary to restore the lid to its 

 natural direction. 



ECTROPION (EVERSION OF THE EYELID). 



This serves to injure the eye by permitting dust and other foreign 

 substances to gain admission to the eye, and interferes with the 

 natural removal of such substances. 



Treatment— A delicate surgical operation— the removal of an ellip- 

 tic section of the palpsebral conjunctiva— may remedy the defect. 



TUMORS OF THE EYELIDS. 



Occasionally tumors form upon or within the substance of the eye- 

 lid. These may be of a fibroid nature, and arise from the follicles of the 

 hair as sebaceous tumors, or maybe in the form of an abscess. In debili- 

 tating diseases the lids sometimes become swollen and puffy, a condi- 

 tion which might possibly be taken for the growth of a tumor. This 

 generally disappears with the improvement of the health of the animal. 

 Warts not uncommonly appear on or about the eyelids of cattle. 



Treatment. — The removal of a tumor in the vicinity of so delicate 

 an organ as the eye should not be attempted by anyone not qualified 

 for the operation. 



•LACERATION OF THE EYELID. 



This accident is not uncommon where cattle are fenced in by barbed 

 wire ; an animal may be caught under the eyelid by the horn of another ; 

 it may occur in the stable by means of a projecting nail or splinter of 

 wood. 



Treatment. — The edges of the wound should be brought together 

 closely and correctly, by means of pins pushed through very nearly 

 the whole thickness of the lid, extending through each lip of the torn 

 part ; then a waxed silk or linen thread must be wound over each end 

 of the pin, crossing the torn line in the form of the figure 8 (PL XXVIII, 

 fig. 9) ; the pins should be placed about three-eighths of an inch apart. 

 The projecting ends of the pins should be cut off close-to the ligature, 

 and the parts kept anointed with vaseline, to which has been added 5 

 per cent of creolin. In place of a pin suture, silver wire, catgut, or 

 strong linen thread may be used in the way of an ordinary suture. 



FOREIGN BODIES IN THE EYE. 



Splinters of wood, hedge thorns, pieces of cornstalk or leaves, stems 

 of hay or straw, twigs of trees, or weeds may penetrate into the eye, 



