Eye dominance means that (generally) one eye takes in the majority of the scene you are looking at with the other eye being used to identify depth of field (how far away things are).
When you bend down for a shot, your head aligns above the stick and you utilize your eyes to draw the imaginary aiming line. Eye dominance affects the placement of that aiming line. When the dominant eye is off to one side of vertical, the imaginary line gets skewed. This messes up the accuracy of your aiming line. The closer your dominant eye is to a vertical position over the aiming line, the more accurate your shots will be. Continue reading