People can focus so intently on a small area of space that they become blind to their larger surroundings.
For example, we’ve all encountered drivers who are so focused on looking for the side street or the exit where they’re going to turn that they lose all sense of the larger traffic flow going on around them, braking and accelerating haltingly and unpredictably without regard for other drivers. Their full awareness of space has shrunk to such an extent that they’re seeing only what’s directly in front of them. It’s a form of myopia, a kind of nearsightedness. Call it car-myopia.