“Everyone has a natural blind spot in each eye. In order for us to see, light must enter the eye and land on light-sensitive cells in the retina at the back of the eye, which create electrical bursts. Then the optic nerve carries these electrical impulses to the brain, where they are interpreted as a picture. There aren’t any cells to detect light where the optic nerve passes through the retina at the back of the eye, so there is no vision in that area.” Read more here:
https://www.aao.org/eye-health/news/eye-exercises-shrink-natural-blind-spot
