Look eye always look eye!

 The advice that Mr. Miyagi gave to the Karate Kid is such good self-defense advice! No matter how big or strong your attacker is, there is no muscles you can build to protect your eyes better. Also, even if your attacker can withstand a tremendous amount of pain (say from a groin kick because they are hopped up on drugs), with the eye gouge if they can can't see they will have a hard time continuing their attack. Attacking the eyes is also effective because it gets a reactive response. Even the toughest dudes try to swat something away from their eyes.

To be effective remember its an eye gouge you are after not eye scratch. No Larry, Mo, and Curly two finger poke here. Your fingers should be bent like claws and you are intending to thrust those claws into their eyeballs. Don't say gross, practice and be ready to do it. This tool alone could give you the opening you need to save your life. Ultimate Defense means to be ready to do whatever you need to so that you and your loved ones are safe!