How hard is it to fly with night vision goggles?
All those answers are pretty wrong.  One eye..Can't read the instruments.. Aviation ANVS like the ANVS 9's are dual tube.  You focus them to your liking,individually for each eye!  I personally get 20/20 with them and you mount them high and simply look under them to read the instruments! I have over 7,000 hours of single pilot NVG.  They make things safer, easier, and it's just like flying during the day, only everything is green.  Things like towers and wires (powerlines) are actually MORE visible under NVG's.  It usually takes established pilots with zero NVG time only a few hours to adjust.  Nothing to it.