992 



DISEASES AND THEIK TREATMENT. 



proving very injurious to the eye-sight. It proceeds from exposure 

 to cold, and is often an accompaniment of catarrh. 



Symptoms.- 



The e y es are 



weak; the con- 

 "5 junctiva, or in- 

 . 6 ner lining of the 

 lids, inflamed ; 

 water running 

 from the eyes; 

 the lids partly, 

 if not wholly, 

 closed, accord- 

 ing to the se- 

 FlG - 854 - verity of the 



1, Sclerotic coat; 2, 4, Veins of the choroid; 3, Ciliary case. Bluish Or 

 nerves; 5, Ciliary ligament; 6, Iris. white film, the 



result of inflammation, comes over the cornea, extending no deeper 

 than the surface, and may vary from a slight cloudiness to entire 

 opacity. 



Treatment. This must, in a great measure, depend upon the 

 cause ; therefore it is of the greatest importance to make a careful 

 examination, especially if but one eye is affected. 



If there is any foreign matter in the 

 eye, remove it promptly, which can 

 be done either by means of a feather 

 or a pair of forceps. The eye should 

 be fomented with tepid or warm wa- 

 ter, and the horse kept in a darkened 

 stable or loose-box; next, the eye may 

 be kept constantly moist by means of 

 a sponge or cloth, wet with tepid or 

 cold water, and applied over the eye ; 

 or better, Goulard^s extract, used in 

 the proportion of 1 drachm to a pint 

 of water. If accompanied by great pain, the following btion 

 should be applied around the eye several times a day: 



1 ounce watery infusion of opium, 

 4 ounces Goulard's extract, 

 12 ounc'es water. 



FIG. 855. Capillaries of the 



vascular layer of the 



retina. 



