Eye-gouging is the act of pressing or tearing the eye using the fingers or instruments. Eye-gouging involves a very high risk of eye injury, such as eye loss or blindness.
Eye-gouging is prohibited in sports. It is a serious offence in rugby football codes where it occurs rarely. It is prohibited in combat sports, but some self-defense systems teach it. Training in eye-gouging can involve extensive grappling training to establish control, the eye-gouging itself being practiced with the opponent wearing eye protection such as swimming goggles.Yuki Nakai went on to win a bout in the Vale Tudo Japan 1995 tournament after his opponent performed an illegal gouge that blinded him in that eye. It is also said that on rare occasions, Shakespearean actors would perform this act during certain plays.