The author points out the excessive demands made on the organ of vision by motorisation and acceleration of locomotion in traffic. He discusses in detail the demands on the central visual performance, twilight vision, sensitivity to blinding colour vision, field of vision, spatial orientation and accommodation. The organ of sight is very different individually, sometimes showing a visual power up to 2.0. While it suffices for civilian purposes to establish minimum requirements for the visual power of pilots, skippers, and drivers of rail motors, it is urgently recommended on the basis of the experiences of the years 1939 to 1945 to carry out special fitness tests in all military drivers of vehicles who have to be trained, particularly prior to their training.
Abstract