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Usually, 20/20 vision is regarded as normal eyesight. However, it is stated to define the lucidity through which a person views something from a 20 feet distance. Whereas, 20/15 eyesight means that you may view something from a 20 feet distance, which an individual with normal eyesight might see clearly from 15 feet.
On this page: What 20/20 means â¢ Tumbling E eye chart â¢ Jaeger eye chart â¢ Limitations. During an eye test, eye doctors use eye charts to measure how well you see in the distance, compared with other human beings. If you haven't established an eye doctor yet, click here to find one near you.