Figure 6. Nanoceria do not produce a cellular inflammatory response in the eye. Histological images were taken at the superior side of the eye under 20X from each group. A: Lipopolysaccharide (LPS)-injected eyes produced massive cellular infiltration (arrowhead) in the vitreous at 12 h after injection whereas no cellular infiltration was seen in the vitreous of the uninjected and saline-injected eyes. B: No cellular infiltration was seen in the eyes injected with saline, the eyes injected with various doses of nanoceria, or the uninjected eyes. Representatives from each group and only the PI7 h and the PI3 and PI30 day are shown. n = 3–6 eyes per group. Scale bar = 100 µm.