VETERINAIIY OPHTHALMOLOGY, 



109 



ment layer, is a single layer of hexagonal nucleated 

 cells, the inner surface of which is loaded with pigment 







..au..| 





j-^ 



•sfcisi^asii^ 



Fig. 58. 

 Section of Normal Retina X 350.-Eye removed for Sarcoma, Retina de- 

 tached but almost normal.-l, Vitreous ; 2, hypertrophied cells of vitre- 

 ous ; 3, membrana limitans interna ; 4, fibers of Muller (they are slightly 

 hypertrophied)— they are part of the connective tissue frame work ; 5, 

 layer of optic nerve fibers, nuclei more numerous than usual ; 6, layer 

 of ganglion cells, some of them having undergone colloid degeneration ; 

 7, internal molecular or reticular layer : 8, layer of inner granules ; 9, 

 external molecular reticular layer— in this as in the internal molecular 

 layer the fibers of Miiller are abnormally distinct ; 10, layer of outer 

 granules ; 11 and 13, layers of rods and cones, in which a distinction is 

 made between the body of each element, 11, and the process 12, which 

 is its continuation ; 13, layer of epithelial pigment in polygonal cells.— 

 {Xoyes). 



granules. The fibers of Muller form the connective 



