Hi! I'll teach you how to change the eye color in just simple steps.
1. Open your image. Here I used Lelouch (from Code Geass, yea, because i loved Anime
)
2. Duplicate that Layer. Now we have Background and Background copy. Click the eye of the Background layer.
The eye should disappear (as shown)
3. We're goin to
delete the eye of the Background copy.
You may want to zoom in the view (CTRL + +). You can use any tool to
delete that (pen tool,eraser tool etc.) I used Polygonal Lasso tool to
trace the eye and pressed Delete in my keyboard (as shown)
4. Now select the Background and re appear the eye.
Below your layers window, click the Create a new fill or adjustment layer (as shown). Select
Hue/Saturation.5. Play with the colors until it suits you.
6. Save you image. Here's our outcome.