BMJ  2004;329 (6 November), doi:10.1136/bmj.329.7474.0-b

Colour blindness screening may be unnecessary

Despite the increasing use of colour in teaching, children with congenital colour vision defects do as well as their peers at mathematics and reading, and probably do not need to be detected by screening. Following a 1958 British cohort for 33 years, Cumberland and colleagues (p 1074) found that almost 7% of boys and about 1% of girls had colour vision defects. Neither highest educational qualification at age 33 nor the risk of road injuries and work related injuries was associated with colour blindness.

Credit: STEVE LYNE/REX

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