A Healthy Salmon's Eye (image) University of East Anglia Share Print E-Mail Caption The role of a key nutrient which prevents cataracts in salmon has been revealed by eye specialists at the University of East Anglia. Research published in the American Journal of Physiology -- Regulatory, Integrative and Comparative Physiology shows how the nutrient histidine, when added to the diet of farmed salmon, stops cataracts (clouding of the lens in the eye) from forming. Credit University of East Anglia Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.