1^6 ^^e Art of Farriery 



" Eye, and a Relaxation of the fmall Kernels that 

 ** are feated at each of its Angles or Corners ; and 

 *^ that, by the hentor or Corrofivenefs of the Mat- 

 ** ter, it at length deftroys the Tranfparency and 

 ** Clearnefs of the Cornea^ fo as to caufe Blindnefs." 

 This is, in my Thoughts, a very lame Defcrip- 

 tion of the Diftemper, For if there was an obHinate 

 Stagnation of the Blood in the fmall Capillary Ar- 

 teries, the Confequence would be a Suppuration or 

 Gathering, (as 'tis commonly called ; ) and from 

 thence the Cornea or Horny-Coat would be deftroy'd 

 in Part, or in Whole, by the Formation of fo thick 

 a Cicatrix or Scar that the Rays of Light could 

 rot be admitted fufficiently, in order to form diftinft 

 Vifion : Whereas we find by Experience, that 

 Moon-blhid Horfes do, at fome particular (though 

 not regularly Hated) Times, fee very well, info- 

 much that no Alteration can be obfer/ed, either 

 within or Vv^ithout the Globe of the Eye. 



Secondly^ I have feldom obferved, that the Cor- 

 rofivenefs of the Humour or Matter deftroys the 

 Tranfparency of the Cornea-, I mean in Lunatick or 

 Moon-blind Horfes. And therefore, I am pretty con- 

 fident, from repeated Obfervation and Diffe6lion of 

 The true Moon-blind Eyes, that the true Seat of this Diftem- 

 Seat of the per (fo very peculiar to Horfes) is in the Iris, 

 Diitemier. otherwife termed Unjca^ before defcribed j and that 

 it is an Inflammation of that particular Coat of the 

 Eye, which may proceed from feveral Caufes, fuch 

 as Surfeits, hard Exercife, or the like ; and the 

 faint Yellownefs obferved by the ^ieur de Solleyfely 

 appearing under the Apple of the Eye, may plainly 

 be feen by any one, who underllands the Anatomy 

 of this Organ, fituate upon the JJ'vca. And this 

 Yellownefs is no other than what frequently happens 

 in other Parts of the Body, when an Inflammation 

 is going ofi\, occaficned (as I apprehend) from the 

 Blood and Humours being obllruded in tlieir Circu- 

 lation. 



From 



