Definition of 20/20 in English:

20/20

adjective

  • Denoting vision of normal sharpness (see twenty-twenty).

    See also Twenty20
    • ‘You don't leave the surgery able to see 20 / 20.’
    • ‘My 20 / 20 vision had never failed.’
    • ‘In the eyes of fans with 20 / 20 vision, Mosley did not win that fight.’
    • ‘I've just had a sight test and the doctor tells me my vision's better than 20 / 20.’
    • ‘Most people can't see a crisp 20 / 20 at near or far distances with our current generation of bifocal contact lenses.’
    • ‘I used to have wonderful 20 / 20 vision.’
    • ‘I have 20 / 20 vision now.’
    • ‘About 66 percent of patients achieve 20 / 20 vision or better.’
    • ‘We humans are surprisingly variable in our eyesight abilities, even when the lot of us are 20 / 20.’
    • ‘I still got all my fingers, all my toes, I've got 20 / 20 vision.’