20/20 Vision - It's Not What You Think

While many people believe that 20/20 vision refers to "perfect" vision, the truth is that it actually refers to "normal" vision. In fact, some people may even have vision better than 20/20. Let me explain. The numbers referenced in this measurement of visual acuity actually refers to the distance in feet that one is standing from the eye chart. If a person has 20/20 vision, this means that they are able to see the line on the test from 20 feet away that "normal" people are able to see at 20 feet away. If a person has 20/15 vision than that person has vision that is better than the normal person, but if a person has 20/40 vision than that person has vision that is worse than the normal person taking the test. Do you know where you rank? Schedule an eye exam.