Figure 2. Mean Vessel Density (VD) in the Vascular Retinal Plexuses Among Patients With Diabetes Compared With Healthy Controls.

In the superficial vascular plexus (A), deep capillary complex (B), intermediate capillary plexus (C), and deep capillary plexus (D), the VD is decreased in all eyes with diabetic retinopathy compared with controls. The VD is significantly lower in eyes with diabetic retinopathy and decreased visual acuity (VA) than in eyes with diabetic retinopathy and normal VA.