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Research conducted by the University of Bradford has debunked the assumption that top sports stars possess elite vision.
The study - published in the journal Sports Medicine - found that vision problems, like short and long sightedness, are common among top cricketers and rugby league players - suggesting that pin-sharp eyesight might not be as important for playing the sports at the highest levels, as many might believe.
More unexpected was that many of the athletes did not attend regular eye examinations and consequently were perhaps not seeing as well as they could while on the playing field.