A long while ago, I was told that the flight deck crew on Air Force One would wear eyepatches during nuclear drills, so that if (hopefully temporarily) blinded

A long while ago, I was told that the flight deck crew on Air Force One would wear eyepatches during nuclear drills, so that if (hopefully temporarily) blinded by an airborne nuke, would be able to continue flying after switching the eyepatch to the other eye.