(A–C) Single mid-ganglion cell layer images from confocal z-stacks of a control eye at 4.24° (A), 12.72° (B), and 27.2° (C) eccentricities, each acquired at 20× magnification. RGCs are labeled with RBPMS (red), displaced amacrine cells with ChAT (green), and cell nuclei with DAPI (blue). (D) Average ± SD cell densities of the seven control eyes for the six eccentricities sampled are shown.