Flying Crane
Sr. Grandmaster
Sure, but consider if the fellow you are defending against is a repeat offender and is looking at doing hard time in prison for the fifth time in his life if he gets caught after tryin to mug you, and he is not willing to accept that possibility.In the video I linked, you see almost everyone as soon as the poke happens they call time-out. It's immediately disorienting, you lose your depth perception, and lose awareness on one side of your body. Because you are probably blinking and tearing up (the natural response to an eye poke) your other eye is going to be less effective. This is all if you can keep a cool head.
In a real fight if you react to an eye poke by turning your head and covering your eye (like happens quite often in these clips), and there is no ref to stop the other person, they have a clean shot to just rain blows on you.
Add in the fact that people generally don't train their natural response to an eye poke. You spar all the time to get kicked in the ribs or to take punches to the head. These are hits the people are used to. The reason they go down so quick on an eye poke is they aren't used to pain there, so they don't know how to respond. And if you do train for that, you'll go blind before you use it in a fight.
So the eye poke could cause him to fight more desperately and he might beat your head in on the concrete, even if he loses the eye later.
Again, it depends on what is on the line. It isn’t an automatic fight-stopper. There are a lot of variables in the mix.