Omega 3 acids found in sardines, salmon, tuna and mackerel are highly effective in combating the world's most common eye complaint, the UK's Daily Express reports.
The findings were revealed at the American Society of Cataract and Refractive Surgery Symposium in San Diego and come from the Advanced Eye Centre in Chandigarh, India.
Poly-unsaturated fat, present in these fish and in fish oil supplements, has long been known to help prevent heart attacks and strokes. Now researchers have discovered it can also improve dry eye syndrome by as much as 105 per cent.
Left untreated, the condition can cause impaired vision and in even blindness.
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