If the smokey eyes are hereditary, then telling you to get more sleep and curtail caffeine won't help (but always good advice to heed). What you can do is make sure you're using a moisturizer with SPF. According to the Mayo Clinic, sun exposure can darken the circles. And by keeping the eye area hydrated, you'll plump up the tissue so the blood vessels underneath don't show as much. There are also a few specialty creams you can try, depending on your budget.
Works on darkness and puffiness quickly while antioxidants and gingko help reverse sun damage. $18, by Baxter of California
Cellex-C Toning Gel
A handy roll-on easily distributes a cooling gel that lightens dark circles in two weeks of regular use. $35, at Grooming Lounge
Canyon Ranch Brightness
This Vitamin C-infused cream has microscopic metallic particles in it that reflect light to make skin appear brighter. $70, at Nordstrom
Use your ring finger to tap the product onto the delicate skin around your eye.