Eye Dominance and Why Square Lies to You
Most golfers do not have a foundation. No routine they run the same way every single time. And without that, there is no consistency, which means they cannot even see what their eyes are trying to show them. The picture changes every putt because everything changes every putt. They are basically blind before they ever start. Not everyone. But most.
So before anything else, you need a routine, and it starts with something that sounds too basic to matter. Mark your ball and clean it. Same thing, every time. Step in the same way. Look at the line the same way. That is the first brick, and the routine is what gives you consistency. No routine, no consistency. No consistency, and you have no chance of seeing the same picture twice. Golfers want a shortcut around this. A line on the ball that solves aim, one setup cue that works forever, a putter that fixes everything. Putting does not work like that. The routine is the first layer, and you cannot skip it.
What eye dominance actually means
Now, eye dominance. Golfers ask me about it all the time, and most of them have it backwards. They hear right eye dominant or left eye dominant and think it is an answer key, that it tells them where to put the ball, where their eyes should go, which putter to buy. It does not. It is not a magic answer. What it actually does is explain why two golfers can look at the same square putter and see two completely different things.
I can set a putter down perfectly square, dead square, and one guy will swear it looks open. The next guy will swear that same putter looks closed. Same putter, same line, different eyes. Neither of them is lying. They are each seeing it through their own dominant eye, and that changes the picture before anyone has moved a muscle.
That matters more than it sounds, because putting starts before the stroke ever moves. If the putter does not look square to you, you are going to fix it somewhere. You will aim left and push it. You will aim right and pull it. You will manipulate the face, or change the stroke, to make up for a picture that was wrong from the start. Then you come tell me you have a stroke problem, when the real problem was the picture at address the whole time.
Why it is a starting point, not a rule
So when someone tells me their dominant eye, I do not reach for a rule. People want me to say a right eye dominant player should set the ball forward, get the eyes a little inside the line, run a certain offset because the shaft and face look cleaner that way. Sometimes that is true. Sometimes it is the opposite. Some right eye guys aim worse with too much offset, because the face looks shut to them.
Eye dominance tells me what to watch. It does not tell me what to prescribe. Those are starting points, not rules.
What I am actually testing is one thing first. Where do you aim when you think you are aimed square. Not where you believe the face is pointed. Where it is actually pointed. I measure it. Then I start changing the picture. Eye position, ball position, length, lie, offset, neck style, head shape, the alignment aid, a dot, a long line, no line at all. Whatever it takes to get the putter to look square to you and measure square at the same time. That is the sweet spot. It is not that right eye means one putter and left eye means another. It is that the putter has to match what your eyes believe and still point where you think it does.
What that looks like in real life
Here is the one that sticks with people. A golfer aims a small blade left every single time. Looks dead square to him, but it is not, and the numbers say so. Nothing wrong with his stroke. I put a mallet with a different alignment system in his hands, and suddenly he aims it straight without trying. Nothing about his eyes changed. The picture changed, and the picture was the problem the whole time.
That is why a fitting cannot stop at the category. You cannot say this player needs a mallet or this player needs a blade without seeing how he aims it and how he sets up to it. The visual side of putting is too important for that. Eye dominance does not give you the full answer. It gives you a better place to start looking, and it narrows the search fast.
What to test next
You do not need a studio to learn something from this. Put a few balls down on a straight line and look at them without a putter in your hands. Then step into your normal setup and check whether that same line still looks straight. If it starts to bend or tilt the moment you take your posture, that is your setup changing your picture. Your eyes are not broken. Your setup is talking, and you should listen.
So that is the goal, and it is simpler than people expect. Find the setup and the putter that make square actually look square to you. Once square looks square, you stop making a stroke just to rescue a bad picture. You stop steering it. And putting gets a hell of a lot simpler.
Which raises the obvious question. If your setup is bending the line, how do you fix the setup. That is next.