Diabetic retinopathy is a serious and acute problem of diabetes type II caused by reduced blood supply to the retina. According to researchers, this is the most common cause of diabetes-related blindness. Consuming two servings of fish per week is sufficient to avoid the risk of blindness in diabetic people. The present study focuses on patients whose food regimen consisted mainly of low-fat or vegetables. It was found that people who used at least two servings of fatty fish per week had a lower risk for diabetic retinopathy compared to those using less fish.
Researchers also followed-up seafood consumption habit for five years. Their results showed that subjects that regularly consumed 500mg of Omega-3 per day (equivalent to two servings of fatty fish per week) were 48% less exposed to the risk of diabetic retinopathy.