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Red Light Therapy: May improve vision after exposure to crimson or near-infrared light

 


When exposed to crimson or near-infrared light, the function of the mitochondria of the eye, the intracellular powerhouse, is improved and the loss of vision is slightly but persistently improved.


health


November 24, 2021

Extreme close-up of the human eye

Visual acuity naturally declines with age

Eko Agung Wahyudi / EyeEm

Unusual treatments for diminishing vision include shining red light on the eyes for a few minutes to increase the activity of mitochondria, microscopic structures that provide energy into cells.

In the first small test of the 24-person approach, one short exposure to light slightly improved people’s performance in a few days of color vision testing.

Deep red and near-infrared light have previously been shown to enhance mitochondrial function in cell-based and animal studies. These wavelengths appear to work by improving the performance of important molecular structures within mitochondria called ATP synthase pumps.

These pumps A molecule called ATP, Used by cells for energy by rotating in the water environment Mitochondria.. Crimson light has just the right wavelength (670 nanometers) to be absorbed by water molecules, so it gets more energy.

This makes the water around each pump less viscous and the structure rotates faster. “It’s like heating the jam to make it easier to stir,” says Glen Jeffrey of the University College London.

Making cells more energy efficient can affect a wide range of body systems, but Jeffrey’s group is investigating cells in the retina. eyeBecause it is packed with more mitochondria than any other cell in the body. Mitochondrial disorders can contribute to poor vision with age and are associated with several causes of blindness.

Work before flies It was suggested that mitochondria make most of ATP in the morning. Therefore, Jeffrey’s group, as a control group, conducted a red light exposure test in people aged 37 to 70 years, comparing morning and afternoon treatments.

Participants had a weak crimson light shining in their eyes for three minutes. After 3 hours, I asked them to detect the characters appearing on a background of similar color and tested their color vision. The team focused on color vision because the cells of the retina that cause black and white vision tend to die with age.

When people received a single treatment between 8 am and 9 am, their performance on the color contrast test improved by 12 to 17 percent compared to before treatment. Ten members of the group were also tested a week later and the results were still up to 10 percent better. However, when treated in the afternoon, there was no significant change.

Some individuals said they did not notice any improvement in their eyesight, even though they performed better on the test, Jeffrey says.

Louise Gau at a British Charity Royal National Institute of Blind The findings say it’s exciting, but more research is needed to see if this approach can bring significant benefits to people’s eyesight. “Large studies will establish evidence of this type of innovative treatment,” she says.

Other groups have discovered that red light therapy can benefit people with a common cause of blindness called. Age-related macular degeneration And worse Sight due to diabetes..

This treatment can be useful in a variety of situations, as boosting mitochondria “turns on all the intracellular systems and makes the cells work better.” Janice Eels At the University of Wisconsin-Milwaukee. Eells is working with a company called LumiThera, Selling red light devices for the treatment of macular degeneration in some countries.

Various groups have also shown that applying crimson or near-infrared light to the head can benefit animals that have caused brain damage or brain damage. Stroke and Parkinson’s disease, Laboratory experiments.

Jeffrey’s group also discovered that it was possible to irradiate red light. Protect bees Be exposed to Neonicotinoid insecticide, Damages mitochondria. This group proposes that beekeepers put lamps in their hives.

Journal reference: Science report, DOI: 10.1038 / s41598-021-02311-1

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2/ https://www.newscientist.com/article/2298723-red-light-therapy-could-improve-eyesight-that-has-declined-due-to-age/

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