Figure 1

Photographs were taken from 16 pre-defined areas of wholemount stained with cresyl blue (A; scale bar 1 mm). In each photograph (B; scale bar 10 µm), the individual cell types were identified and separately counted (E: endothelial cell; G: glial cell; N: neuron). In optic nerve cross sections (C; scale bar 50 µm) the axon number (A: axon) was counted in 5 microphotographs taken from 5 pre-defined areas (D; scale bar 10 µm).