Dominant Eye: How to Check.

Naturally, we use both our eyes to see things simultaneously, but one of our eyes is usually the dominant or preferred eye. You can test which eye is dominant with a simple method as follows:

1. Extend both of your arms in front of you, forming a triangular opening with your hands, and aim at an object.
   
   
2. Test your vision by closing one eye at a time.

If you see the object within the triangular opening while keeping both eyes open, it means that the eye you closed is the dominant eye. On the other hand, if you close one eye and notice that the object shifts or moves partially out of the triangular opening, that eye is your non-dominant eye.

• If closing your left eye keeps the object within the triangle but closing your right eye causes it to shift or disappear from the triangle, your right eye is dominant.
  
  
• Conversely, if closing your right eye keeps the object within the triangle but closing your left eye causes it to shift or disappear, your left eye is dominant.

This is a simple and self-administered method to determine your dominant and non-dominant eyes. In summary, when you look through your joined hands forming a triangular opening and close one eye, the eye that allows you to see the object you aimed at is your dominant eye.