Blue light has a very short wavelength relative to other visible lights, so it produces a higher amount of energy.That blue light harms our vision by damaging the eye’s retina. Exposure to blue light causes a particular molecule in the eye to produce poisonous chemical molecules that affect light-sensitive cells, said the UT researchers. Humans are continuously exposed to blue light because the eye’s cornea and lens cannot block or reflect it.
Structure of retina
„Experiments explain how this happens, and we hope this leads to therapies that slow macular degeneration, such as a new kind of eye drop,” one of the researchers of the project, Dr Ajith Karunarathne said. AMD is a irreversible medical condition that results in loss of central vision, and is also a major cause of blindness for those above 50 years old, according to the Singapore National Eye Center. At night, blue light also can suppress the secretion of melatonin and wreak havoc on our circadian rhythms. To protect their eyes from blue light people can avoid looking at cell phones or tablets in the dark and wear sunglasses that can filter both ultraviolet and blue light.