Eye cross section.

http://lane.stanford.edu/bassett/raw/bassettLargerView.html?t=largerView&bn=58-2
http://lane.stanford.edu/bassett/raw/bassettLargerView.html?t=largerView&bn=58-3

Mike, your lens is way too tiny. The lens is almost as large as the iris, and the iris floats over it like a ring shaped island. It is slightly convex.

---

Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)