Cross-sections of pigmented C57BL/6J mouse eye double-labeled with antibody against p22phox (red) and HF-H (green). (a) p22phox expression in retina of the pigmented C57BL/6J mouse (red). (b) The same field stained with NF-H antibody (green). (c) merged image of a and b. (d) Cross-sections of an albino mouse eye. p22phox expression in the albino mouse eye showing clear expression in RPE cells in addition to the RGC and the IPL. RPE, retinal pigment epithelium; PR, photoreceptors; OPL, outer plexiform layer; INL, inner nuclear layer; IPL, inner plexiform layer; RGC, retinal ganglion cells.