Figure 5. Transmission electron microscopy of macrophages after 4 day feeding with rod outer segments. A: Electron micrographs of macrophages (control). B: Electron micrograph of macrophages after 4 day feeding with bleached ROSs. Magnification: 6,000×. A higher magnification of the intracellular inclusion body region is presented in the micrograph below (magnification 26,000×). C: Electron micrograph of macrophages after 4 day feeding with unbleached ROSs. Magnification: 4,600×. A higher magnification of the intracellular inclusion body region is presented in the micrograph below (magnification 25,000×). White arrows indicate intracellular inclusion bodies in the higher magnification photographs in B and C.