I don't know if this has been discussed already before, but I am wondering if peripheral vision could be used with the same detail and awareness as foveal vision? For example: Could I look clearly past another person but still be "looking" at their eyes for example - and also see the whole face perfectly? I do notice that it is somewhat easy to see where other people is looking at even if I don't look directly at their face. But is it possible to see their facial expression and everything as vividly as if you were looking at them?

Is there difference if you do it "real time" or if you would pick up the image from memory?