Bright eyes Tutorial
Original Photoshop Tutorial @ EScrappers.com
1. Select the eyes
  
2. Copy/paste this selection onto a new layer

3. Use eraser to get rid of any unwanted areas

4.  Adjust the levels to make it brighter (make it brighter than a natural look).

5. You can replace step 4 by modifying the Brightness/Contrast (Bright=50/Cont=40).

6. Change the Layer Mode to "screen" and trim down the opacity down to 25-50 percent.

7. Do any "clean up" with eraser and/or soften brush