FYI-From the manufacturer's website FAQ's:

Q: Is there a correct way to wear the MagEyes?

A: The MagEyes were designed to be worn with the lens flat side to the face and the lens bar (area where the lens sits) on the bottom. However, we do have a lot of gentlemen who like the bar on the top (they just turn the unit up side down) so they have unabstructed view thru the bottom of the lens area. People who wear bifocals seem to be more comfortable this way.