Contact lenses have been favoured for many years by those who take part in sport - and now it seems that by taking part in active pursuits, there could in fact be benefits for their vision.
Research from the US department of energy"s Lawrence Berkeley"s National Laboratory found that running reduces the risk of cataracts and age-related macular degeneration.
After monitoring more than 40,000 runners over a period of over seven years, the researchers found that men who ran more than 5.7 miles a day were 35 per cent less likely to develop cataracts than those who ran under 1.4 miles.
Similarly, the risk of macular degeneration fell by between 42 and 54 per cent in people who ran over 2.4 miles a day compared to those who did less than 1.2 miles.
Scientists in Australia recommend that food rich in vitamin C can help prevent cataracts, Reader"s Digest reports.
by Adrian Galbreth