Abstract: A vision screening device, a vision screening system, a vision impairment screening device, vision impairment screening system, processes, method of assessments, and methods of use are presented. The present disclosure provides a vision screening system and device, including obtaining flash imagery in order to be used for analysis of visual function. More specifically, and without limitation, the present disclosure provides the state of the art with a system for attracting the gaze of a user and controlling accommodation for obtaining proper imagery as is needed for visual analysis. Furthermore, and without limitation, the present disclosure provides a vision system for capturing visual performance of a user.