AAED 29: What does 20/20 mean?

http://traffic.libsyn.com/askaneyedoc/AAED029.mp3Subscribe: iTunes | Android | MoreIn this particular episode of Ask an Eye Doc, you will learn: What 20/20 means What is visual acuity The fallacy of “perfect vision” What is “standard vision” Why trigonometry is a prerequisite for optometry