1. Apparatus for assisting a user in viewing images in a standing, seated, or reclining posture, comprising: a moveable headrest mounted on or with respect to a support for supporting a head of said user in executing head movements from a changing direction; a light source, responsive to a light control signal, for providing light for image viewing by an eye in a head of the user acting as a passive viewer; and an actuator, responsive to a headrest control signal, for causing the moveable headrest to execute attitudinal movements for emulation by the head of the user acting as a passive viewer.