Enter the (advanced) material room. Select the cornea material of original Roxie; either by clicking on the cornea in the preview window or by navigating the material list for Roxie. Right click in the material workspace, and select all / copy. Now select the cornea of Improved Roxie. Right click on the top tab of the Poser surface root node, and paste. Select the other cornea and paste there also. Use the delete unconnected nodes wacro to clean up.

Alternatively, you can select Roxie's cornea material, select the library's materials section, and save Roxie's cornea material as an mt5 material file (single material) to the library. Select Improved Roxie's cornea, and double left click the new mt5. Select the other cornea and double click the mt5.

If you can't get that, here is a zip with two material files. Open the zip, and manually copy them to your library's materials folder. One is an mt5 for the cornea; the other is an mc6 which will apply all of Roxie's default materials.

Roxie mat files .

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5