This can cause headaches by disrupting the movement control of the eyes, forcing the brain to work harder. Compared to fluorescent lights which dim by around 35 per cent with every flicker, LED lights dim by 100 per cent. Satya Karna, a consultant neuro-ophthalmologist with the Narayana Nethralaya, Bengaluru, says the lens and cornea have inherent ultraviolet light blocking, but with age some light, including blue peaks, can reach the retina and cause damage.Ī study, which will be published in Vision Research in September this year, suggests that LED lights can cause headaches as they flicker too much. These researchers suggested a precautionary approach with regard to the use of blue-rich “white” LEDs for general lighting. Studies also reveal that light emitted by LEDs can cause retinal changes, if there is high exposure for even a short period of time.Ī 2014 study published in Environmental Health Perspectives reported the adverse effects on the retina of rats due to chronic exposure to LED lights compared with other light sources that have less blue light. The AMA says that life-long exposure of the retina and lens to blue peaks from LEDs can increase the risk of cataract and age-related macular degeneration.
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Little wonder that many people complain of itchiness, redness in the eyes and mild headaches after continuous exposure to LED lights. This light range controls our sleep cycle and correct exposure is important to maintain our circadian rhythm. LED lights emit light from the short-wave, high-energy blue and violet end of the visible light spectrum. In 2016, the American Medical Association (AMA) said that LED technology may impact human health. But their health impacts have been largely out of public domain.
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The Indian LED lighting market was worth US $3.7 billion in 2016 and the sector grew by 17.5 per cent between 20.
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Light emitting diode (LED) lights are becoming popular in India by the day as they are less expensive and more efficient.