The skin around the eye is 10 times thinner than skin elsewhere on the face and blood vessels are very superficial which can lead to dark circles appearing. Because of this the skin around the eye is more vulnerable to accelerated or early ageing and sun damage. A good eye cream applied twice daily will help nourish, fortify and protect this delicate area. You should also remember to apply your sun protection around the eye. If you find your eyes very sensitive to sun cream in this area then the best one to use is a zinc oxide based formulation. Zinc oxide is less irritating than chemical sunscreens and so will allow you a comfortable application.