Research shows that eating omega-3 fatty acids – most commonly found in oily fish such as tinned salmon and tuna – can help prevent the onset of age-related macular degeneration (AMD), a condition that leads to the gradual loss of vision.
They found that having just one to two portions of fish a week could reduce the risk of sight loss by up to 42 per cent in older women, according to a new study. This finding backs up previous research which showed similar results in men.
The lead author Dr William Christen, of Harvard Medical School, said that “dark meat” fish appeared to help the most.
He said: "This lower risk appeared to be due primarily to consumption of canned tuna fish and dark-meat fish."
More than 500,000 people in Britain suffer from AMD which is caused by the deterioration and death of the cells in the macula, a part of the retina used to see straight ahead.
The disease, which mainly effects people over 40, robs sufferers of their sight by creating a black spot in the centre of their vision which slowly gets bigger.
With numbers of AMD sufferers expected to treble in the next 25 years as the population ages, there is an urgent need for a breakthrough. The team at Harvard Medical School piggybacked on a another study of more than 38,000 women to obtain the findings.