DISEASES OF THE EYE AND ITS APPENDAGES. 363 



ECTKOPION EVEKSION 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. A delicate surgical operation the removal 

 of an elliptic section of the p'alpajbral conjunctiva may remedy the 

 defect. 



TUMORS OF THE EYELIDS. 



Occasionally tumors form upon or within the substance of the eyelid. 

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

 hair as sebaceous tumors, or may be in the form of an abscess. In 

 debilitating diseases the lids sometimes become swollen and puffy, a 

 condition 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 any one not qualified 

 for the operation. 



LACERATION OF THE EYELID. 



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

 wire; an animal maybe 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 (Plate 

 xxvin, Fig. 9); the pins should be placed about j| 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 ereolin. 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 IX T1IK EYE. 



Splinters of wood, hod go thorns, pieces of cornstalk or leaves, stems 

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

 break off and remain, causing inflammation, blindness, abscess, etc. 

 These substances may penetrate the eyeball, but more frequently they 

 glide off and enter between the eye and the ocular Hheath. 



Treatment. Their removal heroines often a very difllriilt task, from the 

 fact that the organ is so extremely sensitive, and the retracting power 

 so strong as to necessitate casting the animal, or even the administra- 



