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Holcomb Hathaway, Publishers

Chapter 10 Lab

Eye Dominance

View or print this lab as a PDF.


Watch demonstration video.


Information is not processed and transmitted to the brain by both eyes equally. One of your eyes, the dominant eye, carries out these actions a few milliseconds faster than the other. Those individuals whose dominant eye is on the same side of the body as their dominant hand are considered same-side dominant, while those whose dominant eye is opposite that of their dominant hand are considered cross-dominant. Eye dominance can affect such motor skills as a person’s ability to aim and to focus.1 The dominant eye drives visual fixation, such as what is used when following a baseball falling through the air to a glove.

This lab provides a simple method for discovering which eye is dominant.


  • Small object that can be seen on a wall


  1. Find a small object, such as a clock, on a wall.
  2. Stand directly in front of it, approximately 10 feet away. Once you are in this position, create a small triangular window with your hands by overlapping your thumbs and fingers.
  3. Stretch your arms in the direction of the wall so that you can see the object through your triangular window, as in the figure below.
  4. Close one eye, and then open it. Repeat with the other eye. Your dominant eye is the one you used when the object remained in the triangular window.


  1. Steinberg, Gregg M. “The Benefits of Assessing Eye Dominance in Motor Skill Instruction.” Journal of Physical Education, Recreation & Dance. 70.3 (1999): 20-21.

Lab adapted from Motor Learning and Control for Practitioners, 2e, by Cheryl A. Coker. Scottsdale, AZ: Holcomb Hathaway, Publishers, 2009.