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 20-20 vision 20-20 vision /ˈtwɛnti twɛnti ˈvɪʒən/

noun

  1. Normal visual acuity, as measured by the ability to read charts at a distance of 20 feet  ( 20/20 , twenty-twenty , 20-20 vision )
    normal visual acuity, as measured by the ability to read charts at a distance of 20 feet