A friend told me of an experience he had during a chickenpocks fever of 106.
His center of awareness went to the ceiling at the a corner of the room and he looked down and saw his friends and himself. The strange thing was his visual perception, his visual acuity was 20/20 and beyond when he saw from an outerbody vantage point, but while in the body he cannot see clearly and wears glasses. He was preoccupied with looking a flowering begonia during this episode.

Perhaps this phenomena has something to do with DMT the body produces during near death experiences. DMT would produce greatly elevated visual acuity, [Removed drug reference- please see site rules]-Admin