Bright light radiation in the blue part of the spectrum is dangerous for cells of the retina - scientists have known this for a long time, but the details of the biochemical mechanism that underlies it have been explained only now - writes Scientific Reports.
According to which, light exposure, carried out by blue radiation, activates light-sensitive retinal molecules, as a result of which the state of phospholipids, which take part in the signaling pathways of cells, changes.
As a result, the concentration of calcium in the cytoplasm sharply increases, which can lead to cell death. This mechanism, by the way, works only in light-sensitive cells, but also in other cells.
“Too bright blue light generated, for example, by the screens of electronic devices, can provoke some visual impairments - for example, damage to the most sensitive area of the retina. Now we know exactly why this is happening,”says Ajit Karunaratne of Toledo University. The scientist adds that street LED lighting systems, which often generate too bright blue light, are dangerous for eyesight.
Kolesnikov Andrey
