I remember the day I picked up my new glasses.  I hadn’t had my prescription updated for three years.  At that time, I wore contacts most of the day, so it didn’t seem to affect me that much.  But I knew it was time to make the change when I had my exam and the doctor told me my eyes weren’t working together and that a prism would fix the problem. “Well, let’s do it!” I was fitted and the order was made.