Make those gorgeous peepers pop, from eyelash to iris
Step 4: Brighten the Whites

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To brighten the iris and white of the eyes, select them with a feathered Lasso (again, about 10 or 15 pixels). Use a Curves Adjustment layer to hold the darks where they are, but lighten the midtones. Be careful not to go too far—over-brightening the eye whites is a common retouching mistake. Keep them looking as natural as possible.