Blue Light Can Lead to Blindness

According to a study published in 《Scientific Reports》, chemists at the University of Toledo have discovered that blue light from digital devices and the sun turns key molecules in the retina of the eye into cell killers.

Dr Ajith Karunarathne, an assistant professor in the Department of Chemistry and Biochemistry at the University of Toledo, said that the corneas and lenses of the eye could not block or reflect blue light, which damages the retina of the eye and results in impaired vision.

Reported that long exposure to blue light, signal transporters on the retina will be dissolved, and then become toxic elements, causing photoreceptor cells to die. Kasun Ratnayake, a doctoral student at the University of Torredo who participated in the study, said that after the death of photoreceptor cells, macular degeneration occurs, and photoreceptor cells vital to vision will not regenerate.

Macular degeneration occurs in 2.4% British adults, mostly among people aged 50 to 60. This disease can cause severe loss of vision.

The Press Association reports that blue light has shorter wavelengths and more energy than light of other colors and that prolonged exposure can cause great damage to the eyes.

By injure the retina, blue light can damage eyesight, which is not a secret. Their experiments explained how all this happened. They hope that this discovery will promote new therapies to relieve macular degeneration.