Well, when you suffer the hit in your eyes, it is possible to have black eyes. So you need to pay more attention to it. First, you should know that when your eyes get hit, and have injury, blood and other fluids may collect in the space around the eye. At that moment, the black eye may occur. Then swelling and dark discoloration can appear. For your situation, you can try using ice to reduce the swelling caused by a black eye. In this way, the bruising will start fading in a few days. Also, warm compress will also be effective for your black eyes, for they can make your blood flow smoothly. So you can just put a warm cloth on your eyes. Anyway, just have a try.