I have a friend with perfect vision, and he has trouble seeing things in video games on a flat screen. I have an eye that does not participate in the general ef

I have a friend with perfect vision, and he has trouble seeing things in video games on a flat screen. I have an eye that does not participate in the general effort, and so I don't have true binocular vision, yet I've always had great hand-eye coordination both in real life and in games, and never had motion sickness. I quietly theorize that this is because I use a multitude of other cues to judge distance, not the "6th sense" of depth that binocular vision provides. I would love to hear how other people experience sensing depth as it's a really fascinating topic, I have no idea what it's supposed to be like. Do you find you 'feel' depth, like if a ball were coming toward your face does it give you a feeling of something speeding toward you?