What are the benefits of blue-light-blocking glasses? They endorse using other approaches to improve your sleep, such as avoiding screens altogether in the hour or two before going to bed. This makes it hard to know exactly how blue light affects humans in real-life scenarios.Īccording to the American Academy of Ophthalmology, blue light from electronic devices won’t lead to eye disease. Because this wavelength is produced by the sun, it can promote alertness, signaling that it’s time to get up and start your day.Īnd a lot of studies on blue light and eye damage have been conducted on animals or in controlled laboratory settings. affect your circadian rhythm, which can make it harder to go to sleep at nightīlue light isn’t all bad, though.Too much blue light exposure is thought to: These screens may look super-clear and vibrant, but they also release more blue light than their non-LCD counterparts.
This is because computers and televisions commonly use liquid crystal displays or LCDs.
While many electronics (including lightbulbs) emit blue light, computer screens and televisions typically release more blue light than other electronics. This is important because doctors associate short-wavelength light with greater risk for eye damage. Compared to other light types, blue light has a short wavelength. Blue light is a wavelength that’s naturally present in light, including light from the sun.