Originally Posted by TennisParent
Make a circle using your right thumb and forefinger, pick a small object about 10-15 feet away and look at it through the circle you have made with both eyes open. Now, close first your right eye then the left, object will remain in the circle with your dominant eye open. It will "jump" out of the circle when you close your dominant eye. I believe that you can also use a small tube, like the cardboard from a used roll of tp for this exercise.
I have always had difficulties in trying to make this test. When I make the circle and try to look through it with both eyes, I either can see the distant object and see the circle in duplicate, or I can see the circle and see the object became doubled.
Do I do something wrong? or it's my eyes that are wrong?