The object in this image is a geodesic sphere comprised of 1500 triangular retro-reflective corner mirrors. The interesting property of having three mirrored surfaces all perpendicular to one another, is that light coming into the corner gets reflected parallel to the direction it came in from. If you have ever been in a room with mirrored walls that come together at a square corner and observed your reflection, you will always see it right in the seam at the corner no matter where you stand in the room. The effect is similar with three orthogonal mirrors, only the reflected image is rotated 180� (from three bounces), instead of remaining normal after two opposing reflections in the previous case. So, that is the reason all the eye images are inverted, just the way one would actually see them - if this bugs you, I guess you can copy and spin the image around.
It would be really cool to view an actual physical version of this sculpture (how is it going, Amjad?), however it would be difficult to photograph this particular effect without capturing only reflections of the camera lens instead of the eye reflections. In fact, I did some web searching for any similar images of corner cube reflections and couldn't find any. However, a clever photographer with a nice beam splitting mirror could probably pull it off.