Not sure about brightening "whites" of eyes - it's a bit like whitening teeth until you consider that teeth aren't actually designed "bright" white.
Sorry to but in on the OP thread but how does Portrait Professional compare to Photoshop ?? because the pic above looks better done with Portrait Professional
Before you do buy check out imagenomic portraiture (similar but different) I don't know how the prices compare.
http://www.imagenomic.com/pt.aspx