https://matteocampagna.com/en/registry/mind/visual-acuity-and-score Changes to this claim in Matteo Campagna's evidence registry: its status, its year-by-year history, revisions of the page. en-gb https://matteocampagna.com/en/registry/mind/visual-acuity-and-scoreThere is a single study on the question, and it dates from 1986: a hundred and two recurve archers tested in the United States, from beginners to an Olympic champion, put through a screening instrument that measured near and far acuity, phorias and colour vision. None of the eleven measures is related to the archer's average score for the season: far acuity sits between 0.12 and minus 0.12 depending on the eye, near acuity and the phorias between minus 0.08 and 0.04, and colour vision reaches 0.25, right on the threshold the authors had set without passing it. In the same panel the only visual measure that stands out is depth perception, which is a different ability. The result has to be read with its limits: these are screening tests run in one go, inside a battery of sixty-two variables given in two and a half hours to a sample aged 12 to 74; the paper does not say whether the archers took the tests wearing the glasses or lenses they normally shoot with, and nobody has ever checked whether correcting a sight defect changes the score.claim:acuita-visiva-punteggio:revision:2026-01-17:2Sat, 17 Jan 2026 08:00:00 GMT https://matteocampagna.com/en/registry/mind/visual-acuity-and-scoreclaim:acuita-visiva-punteggio:new_claim:2026-01-16:riportatoFri, 16 Jan 2026 08:00:00 GMT