Researchers from The University of Toledo studied the impact of blue light — which comes from the sun as well as digital devices — on our eyes.
The study found blue light triggers “toxic” reactions in retinal molecules that sense light and signal the brain. The retinal used by photoreceptors in our eyes is what allows people to see. Results showed blue light helps generate poisonous chemical reactions killing photoreceptors, which cannot be restored once they die off.
This leads to macular degeneration, an incurable eye disease that causes blindness starting in your 50s or 60s, researchers said.