lOO ^he Jrt ^/Farriery 



with good Eyes, but likevvife be a J adge when thefe 

 Horfo which have diftemper'd Eyes are curable. 

 But firft, I think it abfolutely neccfTary, to give 

 fome Account of the Anatomy of this fo admirably 

 contrived Organ. 

 The Eyes The Eyes are termM in Latin Oculi, from the 

 by the Word Occludo to fhut, or from the Word Occulo to 

 tefnVdO- ^^^^^ becaufe they are hid by the Cutting of the 

 cnli,^ an.l' Eye-Lids. They are the Organs or Inftruments of 

 -why. Sight, confifting of many Parts, to wit, of Hu- 



mours, Membranes, ^f. 

 Why the yj.^g Eye alone, when its Mufcle?, the Optick 

 Kye IS of a ^^^^^^ ^^^^ ^Xood. Veffels are removed, is of a round 

 Figure''^ or Globular Figure, both that it may move the 

 better, and alfo that it may the better receive the 

 vifible Rays. 

 Th^Eye- The Eye-Lids ferve as Curtains to the Eye, by 

 Liasjthtir which Duft, Flies, or any Thing elfe which might 

 ^^'^- annoy them, is kept out ; nor .do I think a farther 



The Eve Defcription of them is neceffary ; fo I fnall pioceed 

 <?efcribea. to tJie Eye itfelf, and defcribe the Ports of which it 

 Its Coats, confiils. And frfc, of its Tunicles or Coats. 



The firfl of thefe is called Adnata, from ad and 



tft. A'lnata^^^/^^,. ^^ g^ow to; it is alfo called Alhiigmea and 



'^^''"''-''- Conjunai<va. This makes the White of the Eye, 



and by it the Eye is kept firmly within its Socket ; 



it is of exquifitc Scnfe, and hath many fmall Veins 



and Arteries, which are very difcernable in ^nOph- 



thahnia or Inflammation of the Eye. 



id Sclero- The fecond, is called ScUrotica, from the Greek 



t'lca. ffytK)]ovvcc, induro, to harden. 'I^his Coat appears 



plain,' after the Removal of the former : It ariks 



from the outermoft Coat of the Optick Nerve, or 



in other V/ords, from the Dura Hater ; it is opaque 



or dark behind, but tranfparent before, like a Piece 



of fmooth Horn ; from whence the third Coat has 



its Name, to wit, the Cornea or horny Coat, 



v/hich is all that Part of the Eye, furrounded by the 



White of the Eve. ^, 



The 



