Figure 9. Double immunostaining against CD11b (green) and mGluR6 (red). A: In the control animals, metabotropic glutamate receptor 6 (mGluR6) immunoreactivity is observed in the outer plexiform layer. B: One hour after light exposure, punctate staining of mGluR6 appears elsewhere, colocalizing with CD11b (arrow). C: Magnification of the box area in B. Scale bar: 50 μm.