The number of GFAP/Collagen IV co-localized voxels was significantly decreased in the retinas of the ADHD model (Figure 7E) compared to the controls, which indicates a significant decrease in the vessel coverage by astrocytes (66.1 ± 4.347% and 51.9 ± 2.69% of co-localized voxels for WKY Veh and SHR Veh, respectively). The gene discussed is GFAP; the disease is attention deficit-hyperactivity disorder.