But in anatomical terms, blind spots are the parts of your visual field where you can’t actually see because your retina lacks the necessary cells where it connects to the optical nerve. With no cells to detect light, a part of the field of vision isn’t perceived; you would see this as a black spot were it not for your brain’s ability to make assumptions. The brain interpolates the blind spot based on surrounding detail and information from the other eye when available, so the blind spot is replaced with the image it is likely to contain.
