Blue light accelerates blindness

Blue light accelerates blindness

A new study has shown how blue light can cause macular degeneration - one of the leading causes of blindness.

The researchers are also investigating the light emitted from televisions as well as smartphones and tablet screens, to better understand how cells in the eyes are affected by everyday blue light exposure. But the blue light by itself had no effect on the cells, neither did retinal that hadn't been exposed to blue light.

As more research is needed, those involved in the study say to avoid looking at screens at night - and that scientists should look into developing an eye drop that could perhaps ward off some of the damage caused by the ubiquity of screens with blue light, WTOL reported.

The research found that exposure to blue light leads to the development of toxic molecules in the photoreceptor cells needs to sense light and trigger signals to the brain that enable us to see.

Scientists have claimed that blue light from smartphones, laptops, tablets and other digital devices damages vision and accelerates blindness. For their study, the researchers chose to target retinal molecules that photoreceptor cells need in order to sense light and send signals to the brain.

"We are being exposed to blue light continuously, and the eye's cornea and lens can not block or reflect it", Dr Karunarathne commented.

Macular degeneration, which affects around 2.4% of the adult population in the United Kingdom, is a common condition among those in their 50s and 60s that results in significant vision loss.

More news: 'Suicidal' Man Steals, Crashes Empty Plane From Seattle Airport
More news: Global Stocks Drop Amid Concerns About Turkey
More news: Omarosa's book marks stunning turn-around for a former top aide

The cells do not regenerate, so "when they're dead, they're dead for good", Ratnayake added. Because of this, in the cytoplasm, sharply increasing the concentration of calcium, which can eventually lead to cell death. "The retinal-generated toxicity by blue light is universal".

The researchers found that introducing retinal molecules to other cell types in the body, such as cancer cells, heart cells and neurons, caused them to die off when exposed to blue light.

"If you look at the amount of light coming out of your cell phone, it's not great but it seems tolerable", says John Payton, who also worked on the study.

Researchers discovered that a molecule and natural antioxidant called alpha-tocopherol stopped cells from dying but ultimately failed to provide protection to elderly suffers whose immune systems might have been surprised. "It can kill any cell type", said lead author and assistant professor in the UT department of chemistry and biochemistry, Dr. Ajith Karunarathne.

Dr Karunarathne said: "That is when the real damage occurs".

"That is when the real damage occurs", Karunarathne said.The lab now is measuring light coming from television, cell phone and tablet screens to get a better understanding of how the cells in the eyes respond to everyday blue light exposure.

Related Articles

  • Arsenal boss Emery: Aubameyang can win Golden Boot

    Arsenal boss Emery: Aubameyang can win Golden Boot

    He'll be among the players Arsenal will have to keep a close eye on if they're to stand any chance of getting a result. Emery said he is working hard toward instilling a new mentality in the team, but that it could take time .
    IKEA to hire 15 000 employees in India

    IKEA to hire 15 000 employees in India

    The company is revising its investment plan, taking into consideration the country's economic growth and geographical dividend. IKEA's next store will open in Navi Mumbai in 2019, followed by Bengaluru and Delhi. " Hyderabad is just starting point.
    Manchester United vs. Leicester City - Football Match Report

    Manchester United vs. Leicester City - Football Match Report

    Wanderers, who won the Championship title last season, have strengthened their squad with eight new players over the summer. Mourinho also questioned the role he has at the club. "The information I have is no", he replied matter-of-factly.
  • Ronaldo taken to Ibiza hospital with pneumonia

    Ronaldo taken to Ibiza hospital with pneumonia

    Ronaldo finished his career with an impressive 414 goals, 62 of which came in just 98 appearances for the Brazilian national side. He was instrumental when Brazil won the World Cup in 2002, scoring both goals as they beat Germany 2-0 in the final.
    Family, friends recall man who crashed stolen plane as hard-working, kind

    Family, friends recall man who crashed stolen plane as hard-working, kind

    The "suicidal" man, who dreamed of joining the military, then said that he had thrown up and that he felt "dizzy". Authorities described him as being suicidal, adding that the incident is not related to terrorism.
    Tottenham Hotspur Striker Harry Kane In ''Best Form'' Claims Boss Mauricio Pochettino

    Tottenham Hotspur Striker Harry Kane In ''Best Form'' Claims Boss Mauricio Pochettino

    James' Park will be the hosting ground as Spurs will be hoping to claim all three points against Newcastle United . FW Harry Kane, 6 - You can not fault his willingness; even when Kane is playing poorly, he never goes missing.
  • New Pokemon Let's Go Trailer Displays a World Beyond Pallet Town

    New Pokemon Let's Go Trailer Displays a World Beyond Pallet Town

    Pokemon: Let's Go Pikachu and Evee launches for Nintendo Switch on November 14. If a Pokémon has its associated Mega Stone and Key Stone they can Mega Evolve.
    Midfielder hints at discontent at Manchester United

    Midfielder hints at discontent at Manchester United

    Of Pogba's penalty, which came after just 75 seconds, he said: "A very good penalty taker". The Frenchman only returned to Carrington on Monday after his post-World Cup break.
    Unmanned NASA craft takes off on mission towards Sun

    Unmanned NASA craft takes off on mission towards Sun

    The mission is named for Dr Eugene Parker , a physicist at the University of Chicago who proposed the existence of solar wind . The Parker Solar Probe , a spacecraft the size of a small auto , launched from Cape Canaveral in Florida about 3:30 a.m.
  • Sidhu likely to attend Imran Khan's swearing

    Sidhu likely to attend Imran Khan's swearing

    The India-Pakistan ties nose-dived in recent years with no bilateral talks taking place. Ajay Bisaria also gift Imran Khan a bat autographed by the Indian cricket team.
    Why Trump's Turkey Tariffs Are Worrying Investors

    Why Trump's Turkey Tariffs Are Worrying Investors

    The currency is down about 40 percent so far this year. "The US runs the risk of losing Turkey as a whole", he wrote. Operations in emerging markets can lose significant value as the USA dollar strengthens, as it did Friday.
    Jorginho, Sarri debut with easy Chelsea win

    Jorginho, Sarri debut with easy Chelsea win

    "We started very well, on the front foot, and then the first goal came out of nothing". Huddersfield boss David Wagner felt bad luck cost his side in the season-opener.