Jen Tsai, another New York-based optometrist and founder of Line of Sight Vision noted that “current studies are inconclusive on whether or not blue light from screentime is harmful for our eyes.” But what feels like strain is really just the dryness from the poor tear film that’s a result of not blinking enough.”ĭr. “It leads to this feeling of irritation or a dull ache. And so the oil glands within your eyelids don’t express as they should,” said Dr. “We blink about 40% less than we normally would when we’re staring at a computer screen. Aside from making sure one has an up-to-date glasses prescription, folks also need to be aware of ocular dryness, according to Hogue. Hogue also noted that the discomfort and feeling of eye strain that comes from sitting in front of a screen all day isn’t due to blue light, but rather other behavioral shifts that screens cause within the eye. Singh corroborated this statement and explained that retina ganglion cells within the eye signal to the body to produce melatonin in response to blue light, so exposure during the day and limiting it at night is important for sleep. “That’s why we really don’t want to disrupt the blue light, especially during the day, because it helps to make sure that the circadian rhythm is working as it should.”
“Blue light has been found to control the melatonin and dopamine levels in your brain, and it’s important for the circadian rhythm,” said Dr. He went on to say that blue light exposure, especially during waking hours when the sun is up, is helpful. “The thing I like to tell my patients is that when you go outside you’re exposed to about 100 times more intense blue light than looking at your computer screen, and so the idea that would have any kind of benefit on peoples’ feelings of eye fatigue is a little misguided because the intensity is very minimal in comparison to other sources of light,” said Dr. Wearing sunglasses while outdoors and protecting the eyes from super bright light is important, but there’s no inherent harm in blue light, Hogue said.
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William Hogue.īlue light doesn’t just come from screens, it’s a spectrum of light that radiates from the sun alongside the full spectrum of visual light. But there really hasn’t been evidence that the blue light blockers will make any difference,” said New York-based optometrist Dr. “There’s a thought that because it’s a shorter wavelength, meaning a higher intensity light, that blue light can damage the eyes. Prescription lens proprietors Warby Parker and Pair Eyewear offer blue-light add-ons for a price.įiltering out blue light sounds like it would make hours glued to a screen healthier, or help one sleep at night, but the advice from experts is mixed regarding both of those things. A quick perusal on Amazon reveals hundreds of brands selling the enhanced lenses. The term “ blue light glasses” yields over 100,000 searches a month on Google. This begs the question: Do blue light glasses actually do anything? He also referenced a statement from the American Academy of Ophthalmology that reflects a lack of concrete evidence that blue light glasses help with glare, eye strain, or any other ailments related to eye health. Abhinav Singh, an internal medicine physician and medical director for the Indiana Sleep Center. There are some studies that show it energizes some individuals,” said Dr. As long as you are awake, don’t block blue light during the day.
“In the day you want all the blue light to go into your eyes because that’s a signal for wakefulness.
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