I am using OpenGL in the preview window, and I am using SuperFly. I did notice when I switched to SreeD the iris would go green, but the pupil was still white.

I looked at the advanced materials, and the iris is using a PhysicalSurface node, while the pupil is using a CyclesSurface.

I've attached images of what I think are the relevant material nodes.

Thanks for your help!