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20/20 Vision – What Does It Mean

How To Improve Your Vision Naturally!
Breakthrough Method Helps Thonds To Improve Bad Eyesight Naturally.

Herman Snellen, a Dutch ophthalmologist, designed the first eye chart, which measures visual acuity. Sounds complicated, but it’s not, really. Referred to as the Snellen Chart, it was developed in 1862 and is still used today. One of those things one a day that just didn’t need any changes through the years. He set the baseline of measurement at 20 feet. (The approximate distance at which light rays do not require our eyes to bend the rays to focus them upon the retina.)

Snellen set this standard of 20/20 vision to represent “normal sight,”. Or,it is what a person with normal vision could see at a distance of 20 feet.

This means that a person with 20/40 vision must be 20 feet away to read what he or she should be able to read at 40 feet; a person with 20/85 vision must be 20 feet away to read what he or she should be able to read at 85 feet away, and so on.

There is another chart that measures near vision (nearsighted).

www.your-vision-care.com

There is a chart included in the Rebuild Your Vision Program (I have mine hanging in my den).

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