NEWS: LED lights harmful to health, says specialist.


While LED (light emitting diodes) lights have been touted as a solution for our lighting needs in the 21st century, not all experts are on board with the idea. World leading photobiologist Alexander Wunsch, for one, believes that LED lights may be damaging our retinas and disrupting our endocrine system.

This information is a slap in the face of many governmental organisations, that are phasing out the use of incandescent light as a means to save electricity. Yet, while LED lights are up to 95 per cent more efficient than conventional incandescent bulbs, they also give out higher levels of harsh ‘blue light’.

Recent research shows that prolonged exposure to blue light, with a wavelength between 400-470 nanometers, can cause severe retina damage. On a more sobering note, even brief periods of high exposure can lead to damage of the retinal pigment epithelium (RPE), which leads to photoreceptor cell death and eventually be the cause of absolute blindness.

The difference between light from incandescent bulbs and LED light is that instead of blue light, heat from incandescent bulbs comprise of infrared-radiation, which is beneficial to our healths.

Blue light is also a leading cause of insomnia among urban dwellers, as they cause the brain to remain alert and awake. Doctors advise against looking at mobile device screens as they emit a high level of blue light, before bedtime.