Figure 2. Retinal morphology and thickness. A: Representative images of hematoxylin and eosin (H&E) staining on the rat retinal sections after the 4-month experimental period. Magnification = 400X. Scale bar = 50 µm. B: Graphical representation of the retinal thickness of the rat (n = 4). Data are mean ± standard error of the mean (SEM). C, control; D, diabetes; D+B12, diabetic rats treated with vitamin B₁₂. *Significant difference from the control group; ^#significant difference from the diabetes group (p<0.05).