Figure 3.

(a–e) Light micrographs of a control retina (a) and retinas incubated with different concentrations of AMPA (b, 3 μM; c, 10 μM; d, 30 μM; e, 100 μM; and f, 300 μM) representing an NDS of 0, 1, 2, 3, and 4, respectively. Retinal sections were stained with toluidine blue and were used for rating retinal damage in each condition in the present study. Note the apparent spongy appearance of the IPL and the bull's-eye formation in the INL (open arrows) in (d), (e), and (f). Scale bar: 15 μm.