Lutein is the best blue light filter
What is blue light?
Blue light is part of the visible light spectrum, which comes from both the sun and artificial light sources like digital screens and fluorescent lights. This type of light gets absorbed deep in the eye, making it potentially impacting to long-term vision. The largest source of blue light is sunlight, and in addition, there are many other sources:
- Fluorescent light
- CFL (compact fluorescent light) bulbs
- LED light
- Flat screen LED televisions
- Computer monitors, smart phones, and tablet screens
Almost all visible blue light passes through the cornea and lens and reaches the retina. This light may affect vision and could prematurely age the eyes. Early research shows that too much exposure to blue light could lead to Digital eyestrain and Retina damage
Lutein is the best blue light filter
Recently , researchers at the University of Georgia found that supplementing lutein can protect the eyesight, especially those who are exposed to the negative effects of high energy blue light through long-term exposure to digital screens on computers, tablets and smartphones.
Lutein is a kind of carotenoids, and is also a natural filter for high-energy blue light. High-energy blue light goes deep into the eye and hurts the eye area by promoting the production of free radicals. This area is often the highest in visual sensitivity. Short-term high-energy blue light damage can lead to eye fatigue, and long-term exposure to high-energy blue light will lead to the gradual loss of visual function.
A recent study published in the journal Food examined the effects of macular carotenoids on the visual function, sleep quality and physical condition of people who have long been exposed to high-energy blue light. This study is the first to assess the effects of macular carotenoids on visual health and performance, as well as sleep quality and reduced eye fatigue during prolonged exposure to Blu-ray emitting digital screens.
The researchers said it is well known that blue light affects vision health. A decade ago, electronic technology leapfrogged, and complaints about high screens were very common — neck pain, eye fatigue, physical fatigue and headaches , which provides the researchers with an idea for relief these symptom by specific dietary supplements that contain lutein that can be deposited in the eyes. The researchers found that after six months of keep taking this supplement, eye fatigue symptoms and visual function improved significantly, with the associated symptoms improving by 30 per cent.
This study was a six-month randomized, double-blind, placebo-controlled trial. The researchers recruited 48 healthy young adults who spent at least six hours a day exposed to the blue light of their digital screens. Researchers evaluated the subjects ‘MPOD (macular pigment optical density) and visual performance, including contrast sensitivity, photostress recovery, and deactivation glare, and evaluated them once at the beginning of the trial, three months and six months each.
The results showed that the subjects ‘sleep quality was affected by blue light exposure, and lutein significantly improved the optical density and visual performance of the subject’s eye macular pigment. In addition, the symptoms of eye fatigue, physical fatigue and headache also improved significantly, and the quality of sleep improved significantly.
With the rapid development of technology, the researchers said, electronic products can be found everywhere. Whether at home, at work or at school, people’s eyes are locked on electronic screens for a long time. To make matters worse, even children stare at the digital screen rather than sleep for a long time, which will cause great damage to their eyes, because children’s vision is naturally more affected by blue light.
Therefore, if you can’t reduce your work time in front of the screen , please remember to supplement lutein , since lutein is the best blue light filter .