FINDING YOUR DOMINANT EYE
To find your dominant eye, make a circle of your thumb and forefinger about 6 inches in front of your ...
To find your dominant eye, make a circle of your thumb and forefinger about 6 inches in front of your face. Look through the circle with both eyes at an object across the room. Now close one eye; if the object stays in the circle, the open eye is the dominant one. — Donald H. Dunn, in Business Week
11/4/16