Blue Light Blindness

In today's highly connected world we are increasingly having blue light beamed into our eyes at all times of day. While a convincing body of research is suggesting blue light from our TVs, computers, smart phones and tablets can significantly disrupt our circadian rhythms, it is less clear how much damage this particular spectrum of light is causing to our eyes. A new study from the University of Toledo has homed in on exactly how blue light can damage our eyes and the researchers recommend avoiding looking at cell phones 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.

Our vision fundamentally relies on a molecule called retinal to sense light, and effectively signal visual information to the brain. Karunarathne explains, "You need a continuous supply of retinal molecules if you want to see. Photoreceptors are useless without retinal, which is produced in the eye." The new study finds that in the presence of blue light, retinal can turn against the body, generating chemicals that destroy photoreceptor cells.


READ MORE

https://newatlas.com/blue-light-can-speed-blindness-retinal/55825/

Recent Posts

See All

Hi from HIMSS19!

By Albert DiPiero MD MPH I am at the annual HIMSS meeting in Orlando Florida this week. HIMSS is the Healthcare Information and Management Systems Society. A few quick thoughts: The sheer volume of he

CVS explores new concepts in healthcare

By Albert DiPiero MD MPH CVS - the drug store chain which is also one of America's largest retailers - is not waiting to see what Amazon is up to. CVS is pushing ahead transforming itself from retail

Amazon health venture hires CTO

By Albert DiPiero MD MPH The joint healthcare venture between Amazon-Berkshire Hathaway-JP Morgan Chase (ABJ) just announced the hiring of Serkan Kutan as its CTO. Mr Kutan was most recently chief tec