During interviews with visually impaired people someone told me his trick to find streets. Most visually impaired people still have a little bit of eyesight, and this person used the 10% he could still see to look for the contrast between buildings and the sky. Because of perspective and depth, he could see the shape of an arrow when there was a street.
During interviews with visually impaired people someone told me his trick to find streets. Most visually impaired people still have a little bit of eyesight, and this person used the 10% he could still see to look for the contrast between buildings and the sky. Because of perspective and depth, he could see the shape of an arrow when there was a street.