( 373 ) 



CLASS XI. 



DISORDERS OF THE EYES. 



There is no one part of this tract more 

 entitled to serious investigation than the 

 subject now before us ; for as no blemish or 

 defect can take so much from the original 

 value of a horse as the loss of his eyes, so it 

 unluckily happens, there are few cases less 

 understood or more improperly treated. 

 The rays of information can be but trifling 

 to the general reader, from a dull anatomi- 

 cal description of the globe tunica cornea ; the 

 aqueous crystalline^ and vitreous humours ; the 

 distinct anterior or posterior chambers ; the 

 action of the muscles, or the optic nerve. The 

 elaborate study of so complicate and deli- 

 cate a structure (in the formation of which 

 §uch an infipity of parts and technical ternis 



