Attached Link: www.photoshopsupport.com/tutorials/cb/remove-red-eye

Okay, becuase in CS there is the color replace brush, and in CS2 a even more dedicated tool. The red eyes are actually the inside of the eye you see through the pupil. The reason is the fact that the flash and lense are close to another. This knowledge helps, because you now know that the whole red part is actually pupil (with maybe a little spill), so that has to become black. I first try to 'burn'/darken the red part with the burn tool (a slightly soft brush that is 3/4 of the size of the pupil, opacity set to, like, 30 if you do it by mouse). You should try to make large sessions (start-stop painting) where you make circles in the red part. Sometimes it becomes too dark that way, then you can first pull the eyes (or just the red part) from tha baisic layer. With a round selection (guidelines help a lot) you can select the pupils (first include the part that is hidden behind the eye lid) to a new layer and then use color corrections (de-saturate and level corrections) to get a dark pupil! There are lots of other ways to remove red eyes. See link for a totally different way....