Figure 5. Nanoceria had no toxic effects on the morphological structures of the retina at nine days post injection.

We performed quantitative morphometric analyses (see Figure 4 legend) on the central (A–B), and peripheral (C–D) portions of the retina of animals from different treatment groups (UI = uninjected, Sal = saline injected, or CeNP injected with the indicated dosage) and found no changes induced by nanoceria. Representative photomicrographs of retinal sections from this time point are shown in Figure S3.