Hmmm, a smidge better, but they still look like plastic doll's eyes.

Have you looked into merchant resource kits?  They have them for all kinds of things including eyes. Most are created from actual photographs of real eyes.

http://market.renderosity.com/mod/bcs/index.php?ViewProduct=52555&

http://market.renderosity.com/mod/bcs/index.php?ViewProduct=53131&

http://market.renderosity.com/mod/bcs/index.php?ViewProduct=35913&Start=31&SearchTerm=resource

 http://market.renderosity.com/mod/bcs/index.php?ViewProduct=41368&

http://market.renderosity.com/mod/bcs/index.php?ViewProduct=52996&Start=121&SearchTerm=Resource

There are lots more if you go the MP and search "resource".

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi