Hello I'm not sure if many people have discovered these, but there's some neat eye codes floating around, I haven't tried or used them all but as far as I know there are interesting eye textures. Have not tried on male characters.
idEyeBallTex = 9101 all the way to 9107 is all I've tried so far. Please someone discover more and post screenshots for all to see
For Naruto lovers, Sharingan eyes are 9105