According to these researchers, it seems that certain glasses that promise to block blue light from our electronic devices do not do their job very well.
Blue light is here to stay, because it is present in almost all of our technological devices, such as mobile phones.
For many years, it has been made clear that the blue light may be responsible for certain eye problems or lack of sleep in certain people, and for this different companies have been creating glasses that supposedly protect against this blue light.
Now a recent investigation concludes that blue light blocking glasses may not do their job and points out that consumers should think twice before purchasing this type of glasses.
To do this, researchers from the University of Melbourne with colleagues from Monash University and City University London analyzed 17 published studies from six different countries related to the use of blue light-blocking glasses.
They found that, based on research, there is nothing conclusive about the benefits of blue-light-blocking glasses, and therefore they do not address issues such as overall eye health, sleep quality, or visual performance.
“The results of our review, based on the best current available evidence, show that the evidence is inconclusive and uncertain for these claims.said the study’s lead author, Laura Downie. “Our findings do not support the prescription of blue light filtering lenses for the general population. These results are relevant to a wide range of stakeholders, including eye care professionals, patients, researchers, and the community at large.“, they comment.
“Large, high-quality clinical research studies with longer follow-up in more diverse populations are still required to more clearly determine the potential effects of blue light-filtering spectacle lenses on visual performance, sleep, and eye health.said the study’s first author, sumer. singh:”They should examine whether the efficacy and safety results vary between different groups of people who wear different types of lenses.“, Add.
“The amount of blue light our eyes receive from artificial sources, such as computer screens, is about one-thousandth of what we receive from natural light.” said. around 10-25% blue light, depending on the specific product. Filtering out higher levels of blue light would require the lenses to have a noticeable amber tint, which would have a substantial effect on color perception.”, he concludes.