A study done at the University of Toledo found that blue light exposure causes the retina to trigger reactions that generate poisonous chemical molecules in our photoreceptor cells and eventually kills these cells.
Therefore, in our modern world it is important to know how we can protect ourselves from being overexposed to blue light. Alpha tocopherol, a vitamin E derivative and natural antioxidant in the eye and body can help halt the death of cells. Unfortunately, due to age and many other reasons our levels of Vitamin E can be low resulting in a loss of protection.
Supplementation of vitamin E as well as Zeaxanthin and lutein and wearing glasses (at certain times of the day) with a blue light filter is immensely beneficial.
Zeaxanthin is an antioxidant carotenoid found in your retina. It cannot be produced by the body and needs to be taken in through the diet or via supplementation. Lutein is found in your macular pigment, which helps protect your central vision and aids in blue light absorption. Lutein and xeaxanthin are primarily found in green leafy vegetables (kale, spinach being the highest) and orange and yellow coloured fruits and vegetables. Organic, pastured egg yolks are also a good source.
Both zeaxanthin and lutein are also found in high concentrations in your macula lutea and serve two primary roles such as absorption of excess photon energy and quenching of free-radicals before they damage our lipid membranes.