Macular Edema and Visual Acuity Observation after Cataract Surgery in Patients with Diabetic Retinopathy

Figure 2

Comparison of serum VEGF levels (‾x ± s). Note: the abscissa represented before and after treatment, and the ordinate represented the VEGF level (pg/mL). The VEGF levels in the experimental group before and after treatment were 208.73 ± 24.65 pg/mL and 57.46 ± 6.94 pg/mL, respectively. The VEGF levels in control group before and after treatment were 208.69 ± 24.69 pg/mL and 118.23 ± 6.68 pg/mL, respectively. indicates an obvious difference in VEGF levels of the experimental group before and after treatment (t = 39.183, ). indicates an obvious difference in VEGF levels of control group before and after treatment (t = 23.460, ). indicates an obvious difference in VEGF levels between the two groups after treatment (t = 41.848, ).