Should I buy a Macbook Pro without a retina

Researcher: Blue screen light can be blind

Peter Müller

Blue light, as emitted by various displays, can damage retinal cells at the molecular level.

EnlargeEyes and screen lighting

Sitting in front of the screen all day is certainly not healthy, but researchers at the University of Toledo have found that the blue component of light emitted by smartphones, laptops and tablets can even lead to blindness. This light damages the retina on a molecular level by causing the substances it contains to mutate into cell toxins. These could lead to macular degeneration and ultimately blindness. However, light of other wavelengths is not harmful.

It should be noted, however, that the study was carried out "in vitro", which means that the researchers did not observe the cells from a living organism, but separately in a Petri dish. However, this is only the first step to prove the connection between the blue spectrum of light and damage to the retina. If you want to be on the safe side: iOS and macOS have built in the blue light filter "Night Shift", which can also be activated during the day and which filters out high-energy blue light.