The technician took my old glasses and new lenses and went to the back room where she made the switch.  
She came back out, I tried them on, and WHOA!  The whole world looked like a fishbowl with really thick sides.  I felt like Mr. Magoo!  Couldn't see near, couldn't see far...  I silently wondered who messed up- the doctor or the technician?  
She took them back from me and examined them closely and exclaimed, "Huh.  I think I put them in the wrong sides."
It was everything I could do to keep from rolling on the floor laughing.  That would not have been polite.  But really- can you imagine?
She made the switch and I can see clearly now.
I guess the moral of the story is to always look through the correct lenses!
