Have you ever seen yourself in a curved mirror at an amusement park?  Well now you get to see what everyone and everything else looks like in those mirrors through these sunglasses.  I wanted to like these, but didn't.  In the past I've owned a few pairs of full spectrum reader sunglasses which garbled and distorded my vision and these are certainly no exception.  The magnification is not evenly distributed throughout the lens and in my opinion, could prove DANGEROUS if wearing these while driving as it confuses your depth perception. It would be more safe to not wear these in any situation where clear vision is necessary.  I wear regular readers 95% of the time so I am familiar with what readers should be...these are not.  I gave two stars only because they are sturdily built.