Fig. 50 Drawing of the entire retinal vascular network of the right fovea of an adult male squirrel monkey. The four major planes of the vessels are coded in shades of gray, with black indicating the nerve fiber layer plane, and white the deep inner nuclear layer plane. A, radial arteries; V, radial veins. (Adapted from Snodderly DM, Weinhaus RS: Retinal vasculature of the fovea of the squirrel monkey, Saimiri sciureus: Three-dimensional architecture, visual screening, and relationships to the neuronal layers. J Comp Neurol 297:145–163, 1990)