[Quality of space perception of moving objects in the aged]

The quality of visual spatial perception for movable objects clearly decreases in old age. This significantly concerns the dynamic visual acuity as well as the dynamic stereoscopy and the parallaktoskopy of motion. The main cause for this is the decrease of the association ability in the CNS during ageing, which leads to the loss of the exact sensomotoricity of the eyes. The senile changes were investigated by the binocular prism rotation device (n = 103) and the parallacto-scopometer (n = 79). The reduction of the dynamic vision in old age is above all important as tho the fitness for traffic.