One way I know that works in Poser is to use reflect maps and/or play with the highlight color for the Iris on the figure (you can also use the sphere/ball prop and color/map it, make it simi transparent, and insert it over eye). Next create a small spotlight and point it slightly in front and off to the side of the figures head and set the dials for the spot to focus the beam mostly on the eyes only. Also, if your existing lighting is mostly frontal and your overall background is dark it may not be necessary to use the spotlight as the highlights or reflect map on the eyes may show up okay. You might try this way first before tackling the spotlights. Hope this helps. Rob