Well, yes, in some degree, it can cause black eyes. But on the other hand, you should know that it is just a kind of possibility, for it all depends if your head are hit by the bones and how hard the slap was. So if have been slapped very heavily, it is likely to have a black eyes. But from your description, the hit has caused the black eyes. There are some ways you can have a try to treat your black eyes. First, you should know that a black eye is the result of bleeding underneath the skin around your eye. So you can put on ice on your eyes so that it can cool them. And remember that you should do this for several times. And, you need to be very careful when icing your black eye. The area around your eye is very, very sensitive, and it's already been infected by some other irritants. And also, you can try to use a medical ice bag with a thick rubber casing or wrap the bag of ice in a cloth. Of course, avoiding the water getting into your eyes is also important. Anyway, just have a good rest.
