I recently visited my Ophthamologist and was pleased to receive a good report about the health of my eyes, as well as a prescription to bring my vision to 20/20 when I wear the glasses that it prescribes.  Medically, 20/20 vision is a term used to express normal visual acuity (the clarity or sharpness of vision). When my new glasses were ready, I was pleased to affirm that the prescription achieved its goal.