Home / Health / Blue light from smartphones can make you blind, warns researchers

Blue light from smartphones can make you blind, warns researchers

Researchers have found shocking evidence that can show off blue light from smartphones, laptops and other digital devices that hurt the vision and speed up blindness.

Research at the University of Toledo in the United States has shown that long-term exposure to blue light emitters toxic molecules to be generated in the eye light sensitive cells that can cause macular degeneration – an unbearable condition that affects the middle part of the eye.

Blue light, which has a shorter wavelength and more energy compared with other colors, can gradually cause eye damage.

The use of phones in the dark poses a particular risk of vision (Photo: Getty)

Dr. Ajith Karunarathne, Assistant Professor of University Chemistry and Biochemistry, said: "We are exposed to blue light continuously and the retina and lens can not block or reflect it.

"It is no secret that blue light damages our vision by damaging the eye's retina.

"Our experiments explain how it happens, and we hope it leads to treatments that inhibit macular degeneration, such as a new type of eye drop."

Macular degeneration, affecting approximately 2.4% of the adult population in Britain, is a common condition among those in the 50's and 60's that leads to significant visual loss.

It is caused by the photoreceptor's death, ie light sensitive cells in the retina.

There are currently no ways to repair eye damage caused by blue light (Image: Getty)

Age-related macular degeneration (AMD) is the leading cause of blindness in the United States and at the same time as it does not cause total blindness, AMD can make daily activities such as reading and recognizing faces difficult.

Photoreceptor cells need molecules called retinal to feel light and trigger signaling to the brain so that we can see.

The researchers found that exposed to blue light causes retinal to put a chain of reactions that lead to toxic chemical molecules to be created in photoreceptor cells.

Kasun Ratnayake, a doctoral student at the University of Toledo, involved in the study, said: "If you light blue light on the retina, the retinal kills photoreceptor cells as the signaling molecule on the membrane resolves.

Photoreceptor cells do not regenerate in the eye. When they are dead, they are dead for good. "

More: United Kingdom

The researchers found that the introduction of retinal molecules to other cell types in the body, such as cancerous cells, brain cells and neurons, caused them to die when subjected to blue light.

They also noticed that blue light alone or retinal without blue light had no effect on cell.

Dr. Karunarathne said, "The retinal-generated toxicity with blue light is universal. It can kill any cell type."

The researchers found that a molecule called alpha tocopherol, a natural antioxidant found in the eye and body , the cells stop dying but fail to offer any protection against the aging population or those whose immune system has been suppressed.

Dr. Karunarathne said, "That's when the real damage occurs."

For those who want to protect their eyes from blue light, Dr. Karunarathne recommends wearing sunglasses that can filter both UV and blue light outside

The research is published in the journal Scientific Reports.

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