Biochemists from the United States determined what light is most dangerous for the organs of vision, according to their data, it is blue. Researchers said that blue light causes the death of retinal cells.

Authors of the new work, experts of the University of Toledo, ascertained that the source of gadgets or another source affects important molecules in the retina of the eye, which under its influence turn into "killers" of living cells. This process provokes the development of incurable macular degeneration - a chronic progressive dystrophic disease = i of the central region of the retina, leading to blindness.

Researchers emphasize that the destruction of the retina occurs precisely when exposed to blue light on the photoreceptors of photosensitive molecules, making these molecules toxic and therefore deadly for almost any cell type. When irradiated with yellow, green or red light, this phenomenon is not observed.

"The cornea of ??the human eye can not reflect blue. Given that the eyes are constantly exposed to blue light, irradiation causes death of the photoreceptor cells of the retina, which are responsible for the perception of the brain by light. This leads to a gradual deterioration of vision until complete blindness, "- said researchers at the University of Toledo.

According to their data, the effect of blue radiation activates processes that contribute to a sharp increase in the concentration of calcium in the cytoplasm, which leads to cell death of the cell.

This principle, as the scientists could see, works only in photosensitive cells, but also in other cells. During the experiments with photoreceptor cells of the retina, which were added by their specialists to neuronal, cancerous and cardiac cells, irradiation with blue light provoked the "killing" of the retina molecules of all three types of cells with which they were combined.

Note that in everyday life, blue light waves are reflected from PC monitors, smartphones or from LED lamps.

Source: News Yu.

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