instructor monitors the participant 39 s performance the specialized eyeglasses having binocular manually spinnable fresnel prism lenses are positioned on the participant 39 s head and the lenses if not preadjusted are adjusted to the desired position the participant walks on the line again experiencing the visual and other perceptual impairments created by the eyeglasses while being monitored by the instructor finally the participant and instructor discuss and compare the performances assessing the extent of visual perceptual motor impairment of the participant created by the eyeglasses repeat example 3 except that the participant walks a preset maze repeat example 3 except that the participant walks a traffic cone slalom course a driver education participant steers a dual brake control driver education vehicle while accompanied by an instructor the participant steers the vehicle while the instructor controls the starting and stopping of the vehicle which is operated at a maximum speed of five to 15 miles per hour another party stationed outside the vehicle monitors the participant 39 s driving performance the specialized eyeglasses having binocular manually spinnable fresnel prism lenses are positioned on the participant 39 s head and the lenses if not preadjusted are adjusted to the desired position the participant repeats the task while accompanied by the instructor and monitored by the other party.