Many people experience vision loss as they get older but there may be a simple way to prevent or reduce that loss: eat more fish. Or at least consume more DHA, the omega-3 fatty acid found in seafood.
Scientists at the University of Alberta have discovered that in lab models DHA seems to prevent the accumulation of toxic molecules of the sort that tend to build up in the retina over time and cause vision loss as we get older.
Prof. Yves Sauve of the university's faculty of medicine and dentistry says "in normal aging, this toxin increases two-fold, but in lab tests, there was no increase in this toxin whatsoever. This has never been demonstrated before — that supplementing the diet with DHA could make this kind of difference."
MedicalNewsToday.com reports that Sauve and his team are now investigating whether DHA could be used to counter age-related macular degeneration, which is largely responsible for vision loss among those over 50.