VETERINARY OPHTHALMOLOGY. 



129 



our efforts and we are astonished and pleased with our 

 ability to locate the disc and study its condition at will. 

 We cannot tell our patients to look upward, down- 



Fig. 69. 



ward, to the right, to the left, and thus bring into the 

 field each and all portions of the fundus. Therefore 

 ine do the see-sawing, and, having gotten the focus, 

 9 



