I think you might be on to something there Les, and it looks good.

I've been looking at eye pictures though and I'm still not sure about that.
I think the reason that you can see the iris from the side in a real eye better is due to refraction through the cornea and not because the iris is convex.
Still though, you have to do what you have to do to make software show it as you want it, and this will make Poser display it better in a render.