Here is a true story for your consideration. I once worked with a guy who some years previously had taken a direct hit by lightning - right in the head. As you might imagine, I asked him what it was like. First, he spent about six months in the hospital. It put him in a coma among other things. But this was the interesting part of his description: He remembers sitting on his deck and looking at a stop sign located about 600 feet away. He was never actually aware of the strike. All that he remembers is that the stop sign became highly magnified in his perspective [field of view]. He described it as being like the sign suddenly moved to withing a few yards of him; instead of actual 200 yards distance. That's all that he remembers. He woke up in the hospital about a month later. No he is not OK. For years I assumed that this effect was purely psychological. It occurred to me one day that bulging eyes might modify the magnification of the eyes' lenses. Could this have been a real effect? I thought that we might see a similar effect in G force generators used for astronauts and such. Of course, this situation was extreme in the extreme; perhaps beyond anything that could be safely simulated.