Black eyes occur when the eye or eye area is hurt by an object, and bruises. You need first to see whether you have serious injury on your eyeball, or is there something wrong with your sight.
First, you can use cold compress. Just take an ice pack in a bag or a package, wrap them in a towel, and gently put on your black eyes, keep it for about half an hour, this can reduce the swelling. Also you can use castor oil, which can reduce bruising and promote fast healing.
Second, you can eat some pineapple and papaya, which can help a black eye.
Third, you need to take in enough Vitamin C, which is considered to be a well-documented healer.
Fourth, you should try to not use the following medicines, such as aspirin, tylenol, or ibuprofen, their blood thinning properties can make the bruising worse.