Pathological changes in the cellular structures of retina and choroidea in the early stages of alloxan-induced diabetes

Figure 3 Posterior wall of the eye of an animal with diabetes at 30 d. A: Light microscopy of the retina; *: interstitial edema; v: full blood vessels; B: Electron microscopy of the outer layers of the retina; *: destroying rods and cones; C: Light microscopy of the choroid and sclera of the eye; *: interstitial edema; v: full blood vessels; RPE: destructive changes in retinal pigment epithelial cells; D: Electron microscopy of the retinal pigment epithelium and choroid; *: interstitial edema; v: choroid vessels with sludge complexes; MB: unevenly thickened Bruch’s membrane; Light microscopy: staining with hematoxylin and eosin, magnification × 400, bar 50 μm; Electron microscopy: bar 10 μm.