How your cell phone can make you go blind

A new study has found that the blue light that emits from our smartphones can turn vital molecules in our retina into harmful ones that kill cells

Photoreceptor cells, known more commonly as rods and cones, use retinal to covert light into signals that are sent to the brain. It occurs after the death of photoreceptor cells in the retina. A new study conducted by the optical chemistry research division at The University of Toledo sheds light on the situation. In order to see, you need a continuous supply of retinal molecules, otherwise your photoreceptors are essentially useless.

On an Android, go to "display" in your settings and turn to "blue light filter" on with a swipe.

A new study by Toledo University in OH found that blue light from digital devices triggers the production of a toxic chemical that kills light-sensitive cells in our eyes, according to the Daily Telegraph.

The study, which was published last month in Scientific Reports, involved exposing living cells to various types of light. Overburdening those cells - say, by bathing them in blue light as you check your Instagram feed for the thousandth time that day - can cause them to produce a toxic chemical, causing macular degeneration and even loss of vision. "When they're dead, they're dead for good".

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That process can lead to "age-related macular degeneration", which is a leading cause of blindness in the United States, according to the research's extract. Shine blue light on retinal causes them to kill photoreceptor cells.

The researchers in the study added evidence to the belief that blue light is harmful. "It's no secret that blue light harms our vision by damaging the eye's retina".

'When you damage the photoreceptor cells, they're damaged for good, so the vitamin E derivative now just mitigates damage, ' said Dr Karunarathne. "Our experiments explain how this happens, and we hope this leads to therapies that slow macular degeneration, such as a new kind of eye drop", he said.

Unfortunately, avoiding blue light altogether is rather hard. There are also special filtered glasses, screen protectors, and other products that claim to block blue light, but the only sure-fire way to save yourself would be to stare at this and all of your other screens a little less, especially in the dark.

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