A study published in the American Journal of Clinical Nutrition found that eating one portion of omega-3 fatty acid-rich fish per week may reduce the risk of age-related macular degeneration (AMD) by over 50 percent.
2,275 people over 65 years of age participated in the EUREYE Study. They were given eye exams and completed a food frequency questionnaire.
Researchers found that oily fish was consumed less than once per week by 64% of the study population, once per week by 25%, and twice per week or more by 12%.
Those eating oily fish at least once per week had a 50% reduced risk of a type of AMD called neovascular AMD (NV-AMD), while those eating oily fish at least twice per week had a 58% reduced risk.
Good choices for fish rich in omega-3 fatty acids are cold water oily fish such as salmon, herring, mackerel, anchovies and sardines.
Read other research showing the benefits of omega-3 fatty acids for healthy vision
SOURCE: Augood, et al; Oily fish consumption, dietary docosahexaenoic acid and eicosapentaenoic acid intakes, and associations with neovascular age-related macular degeneration; Am. J. Clinical Nutrition, Vol. 88, No. 2, 398-406, August 2008.