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A new study from the University of Toledo has revealed how blue light from smart devices and screens is damaging our eyes. The researchers strongly recommend avoiding looking at cellphones and tablets in the dark.
“We are being exposed to blue light continuously, and the eye’s cornea and lens cannot block or reflect it,” says Ajith Karunarathne, one of the researchers on the new study. Human vision relies on a molecule called retinal to sense light, and send visual information to the brain.
Immune system can’t handle excessive exposure
“You need a continuous supply of retinal molecules if you want to see. Photoreceptors are useless without retinal, which is produced in the eye, explains Karunarathne. The recently published study found
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