Optic Disk

In the central region of the retina is a yellowish spot called the "macula lutea". It has a depression in its center called the "fovea centralis." This depression is the region of the retina that produces the sharpest vision. Toward the center of the fovea centralis is an area called the "optic disk." The nerve fibers leave the eye at this point to become parts of the optic nerve. A central artery and vein also pass through at the optic disk to supply blood to the cells of the inner layer of the eye.