Color Replacement Tool & Redeye?

Question

I'm usuing PS CS5 in Windows 7 and I have a picture of a cat with a pupil that is a very pale yellow, parts of it get close to white.  I have seen tutorials for fixing redeye with  the color replacement tool.  Select the proper replacement color (black), as the forground color, mode is color, sample once, limit is discontiguous, tolerance 30%.  Of course redeye is not really not redeye in a cat or a dog.
I click once in the pupil and than paint with the cursor.  The change is extremely small and the color this is painted in looks bluish.  I reaise the tolerance up to 100% and still no improvement.  If I select luminosity for mode, that changes things.  Black is painted in, but it's painted in like the paintbrush tool would.  It doesn't look like a color replacement at all, it looks more like its painted over.
Before you mention fix the redeye by raising the flash, I'll mention I get photos from others to work on.  I'm lucky if the photo looks good at all.
I just went in an experimented with the tool.  The cat has places with dark fur and I clicked once on the dark fur and made the forground color red just to exaggerate the effect.  This is more in line with what I expected and leads me to believe the color replacement tool in color mode, won't replace a very light color.
I clicked on very light fur and red does get painted in, very lightly.  I guess this is good behavior, ps is assuming you want to replace light color with light color and the lighter it gets, the less apparent replacement takes place.
Do I have that right?  I was hoping to find a better way to fix redye in animals other than just painting over.  If the picture is good enough, you will have texture in the pupil and I don't want to lose that.
I did some more experimenting with the luminosity setting.  I'm not thinking the apparent paint over look is a result of the lack of texture or variability in the area I'm using the CRT.

Answer 1

Going back to about CS2, there was a tutorial on correcting the retinal reflection on various "animal eyes." IIRC, the examples broke things down by Canine, Feline and then a few others, with discussions on the differences between those animals' eyes, and those of Primates. I cannot find it now, but it was well-done, and approached the issues from two perspecitves, Photoshop's Tools and then a biological bent.
The differences in the eyes characteristics, required different Tools to address.
Good luck,
Hunt
PS - I guess that one could file a feature request for a change in the Red Eye Tool, with presets in a drop-down for Canine, Feline, Primate, Cephalopod, Arachnid, etc.