Figure 4. The activities of antioxidant enzymes (SOD, CAT, GPx) and the level of lipid peroxidation (MDA) were measured in the ocular tissue of control and treated groups. All data are expressed as the mean ± SD (n = 6).**Asterisks denote statistically significant differences compared to the control (C) group: ∗∗p < 0.01 and *p < 0.001.Symbols indicate statistically significant differences compared to the untreated diabetic (D) group: #p < 0.05, ##p < 0.01, +p < 0.05, ++p < 0.01, ^p < 0.05, ^^p < 0.01, and ^^^p < 0.001.