Do blue-blocking lenses reduce eye strain from extended screen time? A double-masked randomized controlled study. aao.org/eye-health/tips-prevention/digital-devices-your-eyes Mechanisms of blue light-induced eye hazard and protective measures: A review. Short-wavelength light-blocking eyeglasses attenuate symptoms of eye fatigue. The effect of blue-light blocking spectacle lenses on visual performance, macular health, and the sleep-wake cycle: A systematic review of the literature. Evening wear of blue-blocking glasses for sleep and mood disorders: a systematic review. You can learn more about how we ensure our content is accurate and current by reading our editorial policy. Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. If you aren’t sure if blue light glasses are beneficial or right for you, you may want to start off with a low cost pair that’s comfortable to wear. Look for lightweight glasses that don’t pinch the bridge of your nose, don’t slide down your nose, or feel too tight behind your ears.
#Beyond blue uv blocker professional
While blue-light-blocking glasses are available in many retail stores, they aren’t endorsed by major eye professional societies.īut if you would like to try out blue-light-blocking glasses for yourself, here are some considerations: Tips for buying blue-light-blocking glasses When the study was over, the researchers didn’t find a difference in eyestrain between the two groups. The researchers found that those who wore the blue light glasses for a 2-hour computer task experienced less eyestrain, eye itching, and eye pain compared to those who did not.īut other researchers have criticized this study because it had the potential for bias.Ī 2021 study of 120 participants asked the participants to wear either blue-light-blocking or clear glasses and perform a task on the computer that lasted 2 hours. The authors didn’t identify any reliable evidence to link blue-light-blocking glasses with improvements in vision, reduced eyestrain, or improvements in sleep quality.Ī small study from 2017 measured 36 test subjects wearing blue light glasses or a placebo. But this hasn’t been definitively proven by research.Ī 2017 review looked at three separate trials related to wearing blue-light-blocking glasses and eyestrain. In theory, blue-light-blocking glasses help reduce eyestrain. 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.
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