Photoshop Tutorials: Shadowy, Sultry Eyes
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Step 5: Select The Iris In Both Eyes
Grab the Elliptical Marquee Tool from the Tools palette and drag out a selection around each iris, making sure again to hold down the Shift key when you go to select the second one so you don't lose your selection around the first one:

You'll probably end up selecting parts of the area above and below the eyes as well as I have here, so switch back to the Lasso tool, hold down Alt (Win) / Option (Mac), which is the keyboard shortcut for accessing the "Subtract From Selection" option, and drag around each area above and below the eyes that you didn't want to select. Each time you release the mouse button, that part of the selection will disappear. When you're done, you'll be left with just the area around each iris selected:

Step 6: Copy The Iris In Both Eyes To A New Layer
We need to copy the iris in both eyes to a new layer, so first, let's soften our selection a little bit by going up to the Select menu at the top of the screen and choosing Feather, which brings up the Feather dialog box. Enter a value of about 5 pixels and then press OK:

Next, click on the Background layer in the Layers palette to select it. Then use the keyboard shortcut Ctrl+Alt+J (Win) / Command+Option+J (Mac) to copy the selection onto a new layer above the Background layer. When the New Layer dialog box appears, rename the layer "dodge", since we'll be using the Dodge tool on this layer in a moment. Your Layers palette should now look similar to this:

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