The quick way to check for a dominant eye is to look off into the distance and focus on something. Then stick your thumb up in front of your face at arm's length while maintaining focus on the distant mark. If your eyes are more or less equal for dominance you'll see two ghost thumbs. If your right eye is dominant the thumb will seem to be stronger on the left of the distant mark and vice versa. You need to take note of it with the first moment of putting your thumb in the way since your mind will work to even the images out quite quickly. If it doesn't then stop driving cars because you have no depth perception due to such a strong dominance.
I had a "Paintball God" moment once.
Like Al Bundy's Polk High football moment I live on
for the slim chance of repeating that one time
miracle in some small way.........