Considering that the eyes are constantly exposed to blue light irradiation and it becomes the cause of death of photoreceptor cells in the retina that are responsible for light perception by the brain.
According to this new research, blue light can makes us blind. Blue light alone or retinal without blue light had no effect on cells, however.
It turns out that introducing the retinal to blue light leads the molecule to have a "poisonous" reaction, the study found. "When they're dead, they're dead for good", said Karunarathne. Dr Ajith Karunarathne, an assistant professor in the university's department of chemistry and biochemistry explained that this blue light is constantly affecting the cornea and the lens that can not block or reflect it.
Futurism noted that scientists already knew that blue light from screens "contributed" to blindness, but they didn't understand the mechanism behind why until now. For their study, the researchers made a decision to target retinal molecules that photoreceptor cells need in order to sense light and send signals to the brain.More news: Villarreal unveil ex-Arsenal midfielder Cazorla in weird fashion
It kills photoreceptor cells, which do not regenerate.
The study also showed how the introduction of retinal molecules to other cell types like heart and cancer cells caused them to die off when exposed to blue light.
"No activity is sparked with green, yellow or red light", said Karunarathne. Retinal without blue light or blue light without retinal could not kill the cells.
However, they did discover that a derivative of vitamin E called alpha-tocopherol can protect against this degenerative process. But as we age, or our immune system takes a hit, we lose the ability to fight against the toxic retinal attack - and that's when the damage occurs.More news: Trump condemns 'all types of racism' on Charlottesville anniversary; critics slam wording
"If you look at the amount of light coming out of your cell phone, it's not great but it seems tolerable", Dr. John Payton, visiting assistant professor in the UT Department of Chemistry and Biochemistry, said.
The lab now is measuring light coming from television, cell phone and tablet screens to get a better grasp of how the cells in the eyes respond to everyday blue light exposure. "Some cell phone companies are adding blue-light filters to the screens, and I think that is a good idea".
The study, undertaken at the University of Toledo, describes how blue light, which has a shorter wavelength and more energy compared to other colours, can gradually cause damage to the eyes. Any medicine would appear to help or delay macular degeneration, a condition that sees about 2 million new cases reported per year.More news: Juventus-Marcelo contact talk sparks concern — Real Madrid