What's your Dominant eye ? Left or Right ?Read 909
Your dominant eye is the one that provides a slightly (in most cases) greater degree of input to the visual part of your brain and more accurately relays information about the location of objects.
Simple test to determine your dominant eye 
1. Extend arms in front of you and create a triangular opening between your thumbs and forefingers by placing your hands together at a 45-degree angle.
2. Keep both eyes open and center the triangular opening on a distant object (e.g. door knob, wall clock) at least 10 to 20 feet away.
3. Close your left eye.
4. If the object stays centered, your right eye (the one that's open) is your dominant eye. If the object is no longer framed by your hands, your left eye is your dominant eye.
Reference from: WWW.AAO.ORG