A black eye is bruising or blood leaking into the tissues surrounding your eye and bone if you get hit there. Most bruises start off as a kind of dark reddish–purple, and as the bruise gets older, it may turn a yellowish, caused by the blood breaking down into its different components.
Bruises gradually disappear over a number of days without needing to do anything. (The leaked blood gets digested by other cells in your body and it is kind of absorbed).
However ugly and painful at the time, bruises will all disappear in a few days or a week.
22 May 2008
Trauma Plus Twelve Hours