In the USA 20/20 is considered normal eyesight. Meaning that you can resolve (see) at 20 feet what the average person can see at 20 feet. A smaller denominator (number on the bottom) denotes superior vision. 20/10 is extremely good, while babies have 20/400 vision at birth, improving to 20/20 by age 6. A hawk has 20/2 vision.
If you are reading this, you are probably 2 feet from the screen. A hawk could read this from 20 feet away. Take 7 steps back and see how yours compares.
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