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? asked in HealthOptical · 5 years ago

What's my dominant eye?

I'm struggling to decide which of my two eyes is dominant. If I point with my index finger to an object, and focus on the object, I tend to default on the leftward finger (as seen by my right eye), yet sometimes default on the other. In general, I use a camera viewfinder with my left eye. And, when doing the two-hand triangle method, I seem to get dominance from both eyes depending on what I am looking at. Am I doing something wrong here? Why am I unable to determine? I really want to find out my dominant eye.

1 Answer

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  • 5 years ago
    Favorite Answer

    Take a roll of bathroom tissue with both hands and hold it in front of your face at arms length. Looking through the hole with both eyes open , look at a small object that fits within the hole and is at least 10 feet away.

    The roll may look partly doubled and even partly invisible, that doesn't matter. Focus on the object , not the roll.

    Without moving your arms , close one eye. If you still see the object in the hole, THAT is your dominant eye. If the object disappears and can't be seen in the hole , then that open eye is not the dominant eye.

    If you automatically use your left eye for the camera, you are most likely left eye dominant.

    Very simple.

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