#Concussion flickery eyesight skin#

The entire beam of laser light can enter the eye and all of that energy is concentrated into an intense tiny spot on the retina, giving an extreme power density, and potentially burning/damaging after just a few seconds. This is due to the parallel/coherent beam property of laser light, which can be focused by the lens of the eye to a tiny point. Red LED light doesn’t pose the same risk and so is not hazardous. The laser beam can be focused by your eye’s lens into a tiny point of intense energy – leading to burns and scars. Laser light (even if it is red) can be hazardous to the eyes. Lasers are NOT suitable for light therapy of the eyes.

LEDs – a note Red light from either lasers or LEDs can be used anywhere on the body, although there is one exception for lasers specifically – the eyes. Other wavelengths with positive results include 630nm, 780nm, 810nm & 830nm. Best wavelength of lightĦ70nm light, a deep red visible type of light, is by far the most studied for all eye conditions. So a therapy that can potentially restore the mitochondria, of which there are many, in the eye is the perfect approach. On top of that, recent research has shown that degeneration of the eye and retina is directly linked to mitochondrial dysfunction. Seeing as light therapy works via interactions with the mitochondria, and the eyes have the richest source of mitochondria in the body, it is a reasonable assumption to hypothesise that the light will also have the most profound effects in the eyes compared to the rest of the body. The only way to meet this high demand is for the cells to house many mitochondria – and so it is no surprise that cells in the eyes have the highest concentration of mitochondria anywhere in the body. The eyes of humans, and specifically the cells of the retina, have the highest metabolic requirements of any tissue in the entire body – they require a lot of energy. The core function of mitochondria is to produce energy for its cell – light therapy improves its ability to make energy. The primary theory explaining the effects of red and near infrared light therapy, anywhere in the body, involves the interactions between light and the mitochondria. Cells in the eye’s retina are especially abundant in mitochondria Given that our eyes are the primary light-sensitive tissue in our body, one might think that the absorption of red light by our red cones has something to do with the effects seen in the research. Wavelength and light type/source are not the only important factors though, as the light intensity and exposure time affect the results. Most of the studies that point to beneficial effects use LEDs as the light source with the vast majority around the wavelength of 670nm (red). Which Color/Wavelength of Light is Beneficial for eyes? Note that the green cones can detect light in the orange/red range. Graph showing the wavelength perception range of the light sensitive cells in the human eye. Research in the area has increased significantly in the last 10 years.

All of the cells receive benefits from some other types of light. Some of these cells (and tissues) are vulnerable to some types of light. We have rod cells to detect light intensity, cone cells to detect colour, various epithelial cells, humor producing cells, collagen producing cells, etc. 1 Like elsewhere on the body, eyes are made up of cells, specialised cells, all performing unique functions. It has recently been proven that the eye can detect a single photon. We do not have the hardware to perceive near infrared light (as used in infrared light therapy), just as we do not perceive other wavelengths of EM radiation such as UV, Microwaves, etc.

Chart showing the human eye’s perception range, within the broader electromagnetic (EM) spectrum They can also detect light between the wavelengths of 400nm and 700nm. Human eyes are especially sensitive to light, being able to differentiate between up to 10 million individual colours. Visual perception is a key part of our conscious experience, and something so integral to our day-to-day functioning. Is there anything to be worried about? Can red light damage the eyes? or can it actually be very beneficial and help to heal our eyes? ContentsĮyes are perhaps the most vulnerable and precious parts of our bodies.

#Concussion flickery eyesight skin#

People want to use red lights on the skin of the face, but are worried that bright red light pointed there may not be optimal for their eyes. One of the most common concerns with red light therapy is the eye area.