Optimal mosaic as a function of retinal eccentricity.

<p>(Top) Variation of measured S cone proportion with retinal eccentricity in human <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1000677#pcbi.1000677-Curcio1" target="_blank">[1]</a>. (Bottom) Proportion of S cones increases with eccentricity in the optimal array.