Binocular Vision optical illusion | See through you hand illusion

If you want to see through your hand, you must take a sheet of paper and make a tube. With your right hand you put one end of the tube to your right eye, as you do it with a telescope. Then you hold your left hand at the tube, as shown in the PICTURE . You focus your eyes on the wall of the room. It will seem to you that you are looking through a hole in your left hand. If you move your hand back and forth, you can find a place where it will seem to you that the hole is in the center of your hand



It is Binocular Vision that explains this illusion. The picture of the hand in your left eye runs over the picture which you see with your right eye.