no, really EYE do...

look down at the eye chart,  and tell me, which is better,one or two?  Now cover your right eye and read the smallest line you can see.   

wanta drive?  wear these binocular like lens over your glasses and take 30 hours of bioptic driving classes.  If you pass, you'll be on the road!  (which is scarier, me or my 16 yr old behind the wheel?)

want to curl up to read a good book with this on your lap?  me neither, so they are going to try and get me a handheld model.   

It's in the government's hand now, I may be back in the workforce and on the road by next fall!