Look at the red light and improve your fortune
If you stare at a red light for three minutes a day, your eyesight can improve significantly. This was the finding of a new study, the first of its kind in humans. The diminishing view improved by looking at deep red light from an LED flashlight. Due to the aging of the retina, many people have a certain visual decline. Scientists believe the discovery could signal the start of new affordable eye therapies that could help millions of people worldwide with naturally decreasing vision.
Can red light heal eyes?
The visual system decreases considerably with age. Retinal sensitivity and color vision are gradually being undermined, and this is becoming an increasingly important issue with an aging population. To curb or reverse this decline, the researchers tried to restart the retinal aging cells with short, long-wave flashes of light. In people around the age of 40, the cells in the retina of the eye begin to age. The rate of this aging is partly caused by the mitochondria of the cell. So their job is to produce energy and increase cell function. The density of the mitochondria is greatest in the photoreceptor cells of the retina, which have a high energy requirement. As a result, the retina ages faster than other organs, with an energy reduction of 70% over life. Accordingly, this leads to a significant deterioration of the photoreceptors because they lack the energy to perform a normal role.
The researchers built on previous findings in mice, bumblebees and fruit flies. All found significant improvements in the function of the retinal photoreceptors when the scientists exposed the eyes of the test animals to 670 nanometers deep, long-wave red light. Mitochondria have specific light absorption properties that affect their performance. Longer wavelengths from 650 to 1000 nm are absorbed and improve the performance of the mitochondria to increase energy production. In addition, the retinal photoreceptor population consists of cones that mediate color vision and rods that allow peripheral vision and adjust vision in low light.
Research with human subjects
The researchers recruited 24 people (12 men, 12 women) between the ages of 28 and 72 for the study. They had no eye problems. At the beginning of the study, the team tested the eyes of all participants for the sensitivity of the rods and cones. They measured this sensitivity accordingly with adjusted eyes with dilated pupils. All participants then received a small LED flashlight to take with them. You should look into the deep red 670 nm light beam for three minutes a day for two weeks. Then the subjects were tested again for sensitivity of the retinal rod cells. The researchers found that red light had no effect in younger people, but it did make significant improvements in people over 40 years of age. In addition, color contrast sensitivity (ability to recognize colors) improved by up to 20% in some people aged 40 and over.
Improvements were even more significant in the blue part of the color spectrum, which is more susceptible to aging. The sensitivity of the chopsticks (the ability to see in low light conditions) also improved significantly in people aged 40 and over, albeit less than the color contrast. So this study shows that it is possible to significantly improve the eyesight that has decreased in the elderly by simply brief exposure to light wavelengths that charge the energy system that is decreasing in the retinal cells, similar to charging a battery. The technology is simple, safe, and uses a deep, red light of a certain wavelength. Mitochondria in the retina absorb this light and then provide energy for cell function.
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