TECHNIQUE OF EYE DISSECTIONS 



harder inner layers (nucleus). This will 

 not prove very successful but is suggested for 

 the purpose of comparison when the same 

 thing is done to the hardened lens. 



It will be found that the lens after having 

 been in the formaldehyde solution is no longer 

 crystal like, but more or less translucent. 

 When viewed from either the anterior side or 

 the posterior side, the tri-radiate lines on each 

 surface will be seen to begin at the poles of 

 the lens and radiate outward toward the lens 

 equator. Holding the lens up to a strong 

 light will show that though the lines on either 

 surface form angles of 120 degrees, the angles 

 formed by the lines on one side with the lines 

 on the other side are 60 degrees. On the an- 

 terior surface of the lens the vertical line ex- 

 tends upward from the pole; on the posterior 

 surface downward from the pole. 



To study the laminated structure of the lens, 

 it is best to boil the lens. The best way to do 

 that is to drop the lens from either a hardened 

 or unhardened eye into boiling water. Let it 

 boil in the water for about two and a half to 



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