1. A gaming machine comprising: an external cabinet defining an interior region of the gaming machine, the external cabinet adapted to house a plurality of gaming machine components within or about the interior region; an eye detection system located within or about the external cabinet, configured to locate an eye of a person near the gaming machine, and configured to generate image casting information that describes a position of the eye; and a retinal image system located within or about the external cabinet, configured to generate an image for the person and direct the image into the eye of the person using the image casting information.