Figure 2. Time course of retinal degeneration after light exposure (ALE). Haematoxylin/eosin stained retinal cross sections from the dorsal (left column) and the ventral (right column) central retina. A, B: control animals; C-L: experimental retinas from animals processed at increasing times ALE. C, D: 1 day ALE; E, F: 7 days ALE; G, H: 30 days ALE; I, J: 90 days ALE and K, L: 180 days ALE. Abbreviations: RGCL: retinal ganglion cell layer, IPL: inner plexiform layer, INL: inner nuclear layer, OPL: outer plexiform layer, ONL: outer nuclear layer, OSPL: outer segment of photoreceptors layer. Asterisks mark the outer nuclear layer and the arrows point to the outer segments of photoreceptors. Bar=100 μm.