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THE MODERN SYSTEM 



well is very much disposed to blindness ; but 

 they do not know why. The fact is, the pre- 

 disposition arises from disease ; it is the effect 

 from attacks of inflammation, which produces 



a morbid degree of sensibility to light, from 

 sympathy the retractive muscle is brouffht 

 into action, and, consequently, the eye Is 

 drawn into its orbit, and appears small. 



DISEASES OF THE EYE. 



INFLAMMATION OF THE CONJUNCTIVA. 



It will be remembered, the conjunctiva is 

 that membrane lining the eye-lids, covering 

 the cornea and the haw of the eye, inflam- 

 mation of which is the most common disease 

 the eye is subject to. 



As regards this disease, then, the first thing 

 to ascertain is, whether the transparent cor- 

 nea is affected or not. One criterion is, the 

 iris at the border of the pupil, not being seen 

 without difficulty. We then direct our atten- 

 tion to the other, and not finding the pupils 

 exactly alike as to size, &c., that which is 

 the smallest you may pronounce diseased, the 

 sphincter muscle of the iris being contracted 

 through sympathy. Next notice the blood 

 vessels of the membrane under the eye-lid ; 

 they will appear turgid, even if there is only 

 one of those vessels shooting into the trans- 

 parent cornea, it is a diseased eye. We must 

 then direct our attention to the glandular 

 bodies at the upper edge of the iris ; if they 

 are not alike in colour, you may predict the 

 Horse will go blind, this effect being from a 

 little lymph being lodged there from previous 

 inflammation. The haw is likewise a criterion 

 to go by, if the haw of each eye be not in a 



similar situation, but one protruding more 

 than the other. These incipient appearances 

 of one disease, are of great importance, as tiie 

 Horse has but few diseases of the eye, and 

 this being the one he is generally subject to, 

 and it as frequently ending in blindness. 



The Horse is generally attacked with this 

 disease in the night time, and is then thought 

 of but little moment, the groom supposing the 

 eye to be injured by the halter, or by rubbing 

 his eye against the manger, or some rough 

 place in the stall ; but I never knew the dis- 

 ease produced by a foreign body, and as to 

 producing it by blows, it is exceedingly diffi- 

 cult to wound the eye ; but if it should be 

 occasioned by a blow, there will be an abra- 

 sion on the external surface, and on examining 

 which, you will easily determine how to 

 proceed. 



Take Extract of Saturn 4 drams (i oz.) 

 Spring water sufficient to fill a com- 

 mon sized wine-bottle. 



Apply this lotion frequently every day. Or, 

 Take Sulphate of zinc - 1 oz. 



And dissolve in the same quantity of water as 

 above ; either of which, if the inflammation 



