Foveal retina. False-colour scanning electron micrograph of the human retina featuring the central fovea, a crater-like depression in the photosensitive layer of the eye. The foveal retina is the area of greatest visual acuity and contains only cone receptor cells. When an eye looks at an object, that part focused on the fovea is the portion most accurately registered by the brain. This area is particularly rich in blood vessels, which appear root-like, running in, over & outside of the foveal ridge". Magnification: x24 at 6x7cm size."