DHA for Visual Acuity
Long-chain omega-3 fatty acids are a main component of the retina. The fat content of the retina consists almost exclusively of DHA. The DHA stored in the retina affects its strength, motility and permeability. In addition, fatty acids also have a beneficial effect on the lipid state of the photoreceptor membranes.
Our eyes are very sensitive. With advancing age, many people develop impairments to their vision which can’t be corrected with glasses.
A variety of clinical studies have shown that sufficient nutritional intake of long-chain omega-3 fatty acids can reduce the probability of age-related macular degeneration (AMD)1. A large-scale study near completion (AREDS2) by the National Eye Institutes of the U.S. Department of Health and Human Services promises to clearly confirm that EPA and DHA are effective in preventing AMD.2
1Olson et al: Nutritional supplementation and age-related macular degeneration (2011)
2National Eye Institute: Age-Related Eye Disease Study 2, http://www.areds2.org/