TECHNIQUE OF EYE DISSECTIONS 



THE OPTIC NEKVE 



The excavated posterior half may be used 

 now to show and .to study the construction of 

 the optic nerve. In cutting the optic nerve 

 away from the sclerotic leave at least 5 mm. of 



Fig. 15 Enlarged to show the entrance of the optic 

 nerve. (Page 48.) 



the sclerotic attached. It will make handling 

 easier. With the thumb and forefinger of the 

 left hand hold the nerve in such a way on the 

 table that it will be straightened out length- 

 wise, and then, using the scalpel or a safety- 



47 



