Steps to determine Dominant Eye

Step 1: With both eyes open look at a small target that's as far away as possible that you can see reasonably well.

Step 2: Extend your arm and with both eyes open point a finger directly at the target.

Step 3: While still pointing at the target, close or cover one eye and then the other.

Step 4: The eye that sees your finger most accurately pointing to the target is your dominant eye.