LED lights can permanently damage the retina and disturb natural sleep rhythms, France‘s government-run health watchdog has said.

The French Agency for Food, Environmental and Occupational Health and Safety (ANSES) warned powerful LED lights are ‘photo-toxic’.

In a 400-page report, the body cautioned it can cause an irreversible loss of retinal cells and lead to a common cause of blindness.

ANSES urged officials to revise the maximum limit for exposure to LED lights, which emit ‘blue light’ at much higher quantities.

LED phone, tablet and laptop screens do not pose a risk of eye damage – but the intense bulbs used in car headlights may, it suggested.

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