‚Äč

What Does 20 30 Vision Mean?

Answer

20/30 vision means that you can see a sign at 20 feet what a normal person would have to see at 30 feet. It is considered mild vision loss, or near-normal vision. People with such vision are recommended to get corrective lenses to bring their vision to normal.
Q&A Related to "What Does 20 30 Vision Mean?"
The two numbers are a ratio, known as the Snellen Ratio. The bottom number is the distance someone with normal vision can distinguish a reference. The top number is the distance the
http://wiki.answers.com/Q/What_is_30_30_vision
When your eyes are examined, the eye chart used for testing is set at a distance of 20 feet. The top, or first number in an acuity of 20/30, is a 20. This number represents the distance
http://www.ehow.com/facts_7310190_acuity-20_30-mea...
If someone sees 20/30, they can see something at 20 feet that someone with 20/20 vision could see at 20 feet. So it's a little worse than 20/20 vision.
http://www.kgbanswers.com/what-does-2030-vision-me...
It means what you see at 20 yards is as clear as what a person with perfect sight
http://www.chacha.com/question/what-does-having-20...
About -  Privacy -  Your Cookie Choices  -  Careers -  About P.G. Wodehouse -  Help -  Feedback  -  Sitemap  © 2014 IAC Search & Media