A vision enhancement device for use in a vehicle that improves the frontward vision of an operator during operation. The device has two dividing lines set apart from each other on an instrument panel. These dividing lines show as false image lines on an inside surface of a front window, and divide the inside surface of the front window into a plurality of areas in a vertical direction. A second area formed between these two false image lines forms an appropriate visual field range when the operator looks forward while operating the vehicle. First light emitting means comprising light emitting diodes are disposed at both ends of each of the two dividing lines. The light emitted by these light emitting diodes is directed onto the front window as a false image in accordance with changes in the vehicle state and the environment around the vehicle.