Figure 7. Size distributions of Calcium-binding protein (CBP) immunopositive and immunonegative neurons are shown. The histogram shows the surface area of projection of the somata of neurons in the retinal ganglion cell (RGC) layer from retinal whole mounts that were immunopositive for Pan-Na_V only (n=40, red) or Pan-Na_V and calcium binding proteins (CBP; n=40, black). The histogram is based on projections of all optical planes corresponding to the RGC layer from five midperipheral retinal areas (256 μm × 256 μm).