Tunnel Vision???
Can't say that I have ever been bothered by tunnel vision... In my world under the water it is a major sensory deprivation, I can't see much (I'm always in the muck), can't hear anything (hood on and air bubbles rushing by), can't feel anything (always wear heavy gloves and exposure suit) and I'm all consumed on getting the task at hand completed.
Well, Okay, so it not all that bad, I do have some good dives. In fact I take time on every dive to do a little exploring and you're right not much gets by me down there. I'm acutely aware of what's going on around me at all times. A good diver never puts himself in a panic situation; mistakes made down there are very costly. When a situation dose arises, the diver doses the three "R"s, React, Re-gain control and Respond.
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