Risks of Blue Light in Retina from Various Lighting Sources

Abstract

Photoretinitis, often known as blue-light hazard, is a photochemical lesion to the retina that can be brought on by artificial short-wavelength light (blue light). The danger of blue light was assessed in this study when using different light sources. Some examples of these sources include the sun, arcs used in arc welding and laser cutting, magma steel, iron, and glass, the interior of furnaces, the florescent arc or envelope, the filaments or wrappers of incandescent bulbs, the inner membrane of fluorescent tubes, and lamp diodes. Each light source's spectrum radiance was measured in accordance with the American Conference of Governmental Industrial Hygienists guideline and the blue-light functional radiance and the associated allowable time of exposure per day were determined. Solar sun, arc welding, laser cutting, and arc discharge lights were shown to have exceptionally maximum function radiances with corresponding permitted exposure periods of just 0.6 to 40 seconds, indicating that staring at these light sources is extremely dangerous for the retina. According to the study's findings, other light sources had low effective radiances and wouldn't be dangerous—at least not for brief exposures. The term "blue light danger" refers to the likelihood of suffering this harm (BLH). The retina has been harmed photochemically. The term "photochemical" refers to the chemical processes that occur on the retina as a consequence of the maximum energy content of the incoming light. The highest energy-content colour in the spectrum that can still reach the retina is blue light Like UV are more energetic light harm the retina, but it does not reach the retina as it is absorbed by the lens.