A nonprofit publication of the Kentucky Center for Public Service Journalism

Eye Health: Some eye-opening insight into what the definition of perfect eyesight is


By Dawn Stratton
Special to KyForward

20/20 Vision: What is it exactly?

It’s likely you’ve heard the expression 20/20 vision. You may think 20/20 vision means you have perfect eyesight, so this post will be eye-opening for you.

Here are some facts to help clarify what 20/20 truly is:

220px-Snellen_chart.svg

When you step into your eye doctor’s office, the first thing you can expect is to look at a chart. The chart is 20 feet in front of you and full of letters. This chart is known as the Snellen chart and is what determines your visual acuity.

There is a line on the Snellen chart known as the 20/20 line, which has been standardized to correspond to “normal” visual acuity. If you are able to identify the letters above this line, but none smaller, you have normal (20/20) visual acuity.

You may be wondering: is there anything better than 20/20 vision? Yes! If you are able to read the smaller letters below the 20/20 line, then you have exceptional vision (20/15, 20/12, 20/10). Most young people are able to identify at least some of the letters below the 20/20 line.

And, 20/20 vision does not mean you have perfect eyesight. There is no such thing as “perfect vision.” There are always ways to improve your vision and different variables will lead individuals to different ideas of perfect.

Source for some content: http://www.allaboutvision.com/eye-exam/2020-vision.htm

Screen Shot 2015-12-07 at 10.37.55 AM

Dr. Dawn Stratton is the founder of Stratton Eyes. She is a graduate of Illinois College of Optometry in Chicago and earned her Doctor of Optometry in 1994. Based in Lexington, Dr. Stratton is a member of American Optometric Association, the Kentucky Optometric Association, the National Association of Professional Women and the Fellowship of Christian Optometrists. She also provides eye exams for patients at the Hope Center, Room at the Inn and The Nest. Visit Stratton-Eyes.com for more information or call 859-245-2020 or email office@strattoneyes.com. You can also find the office on Facebook and on Twitter @StrattonEyes.


Related Posts

Leave a Comment