Blue light and eye health

Open laptop showing blue light from computer screen

Do you work on a computer all day, or look at your smart phone often? If so your eyes probably feel tired, itchy or watery after a while. Learn how to protect your eyes from the blue light emitted by our technology devices.

What is it Blue light and why can it be harmful?

Blue light is a part of the spectrum of light (with wavelengths  between 380 and 500 nano-meters). It is emitted by the sun, but also by artificial light sources: LED bulbs and screens (tablets, televisions, computers, smartphones).

The potentially dangerous blue light represents only a small part of the total existing blue light. This is the blue-violet light.
The energy reaching the retina in the case of the blue-violet light is stronger than the turquoise blue light. Screens in particular diffuse peaks of blue light called high-energy visible light (or HEV light) .

Computers, laptops, tablets and smartphones all emit high amounts of this blue light.
Such blue light causes oxidative stress to the retina.  This will have a stronger effect on people with less of the macular pigments lutein and zeaxanthin. These pigments are here to protect the retina.

People more susceptible to the harmful effects of blue light are those with:

  • Light colored irises,
  • AMD (age related macular degeneration)
  • Genetic predisposition to AMD

Key points

  • Significant exposure of high-energy blue light comes from LED screens that include:
    • televisions
    • tablets
    • smartphones
    • computers
    • indoor lighting LED (light-emitting diode) or CFL (compact fluorescent lamp)
    • and even LED car headlights
  • 90% of all indoor light sources will soon be LED and CFL — both emit high-energy blue light
  • High-energy blue light penetrates deep into the eye and directly impacts the macula — the area of the eye responsible for highest visual sharpness
  • High-energy blue light can lead to digital eye fatigue while long term cumulative effects can lead to a progressive loss of visual function

How to protect your eyes from blue light?

Most of us know to protect our eyes against the sun, but high-energy blue light from digital screens and energy-efficient lighting bombards our eyes daily.  In addition to damage to the retina, blue light also causes glare and eye fatigue. First of all, try to limit your usage of electronic devices. Apply this to children as well.

Lutein and zeaxanthin are pigments found in the macula (the central part of the retina). Our bodies can not make lutein and zeaxanthin and so we must obtain them from our diet.  Lutein and zeaxanthin support eye health by acting as powerful antioxidants and high-energy blue light filters. They absorb blue and UV lights therefore protecting the macula from their harmful effects.

Kale, and dark leafy greens are a great source of lutein and zeaxanthin, with Kale being the top eye food.

If you use technology devices often, you should also consider taking supplements with a good source and right amount of lutein and zeaxanthin insomers.

For additional protection, you can wear computer glasses (they have special yellow lenses). Another option is adding a  blue light filters to your computer screen or smart phone and  tablet.

Your eyes need Lutemax 2020® : VISTASAFFRON has it!

Even consuming the daily recommended amounts of fruits and vegetables may not provide sufficient levels of lutein and zeaxanthin isomers.

Lutemax 2020® is an award-winning ingredient. It provides lutein with enhanced levels of zeaxanthin isomers. With a balanced 5:1 ratio -the same ratio found in nature-  Lutemax 2020® supports healthy vision as well as general health over your lifetime.

This is why Pharma Phoenix uses Lutemax 2020® in VISTASAFFRON , macular support, as our source of natural lutein, zeaxanthin and meso-zeaxanthin.