The red Eye Tool is another tool brought to Photoshop CS2 from Photoshop Elements 3. I have worked with this tool quite a bit in Elements, and I can tell you it works great on a variety of red eye images with no changes to the default settings most of the time. It is literally just two clicks (one for each eye) to remove red eye from the majority of photos now. If you need to, you can adjust the pupil size and darken amount. There is no difference between the Red Eye tool in Photoshop CS2 and Photoshop Elements 3.