Jennifer Tsai, O.D., explained that blue light emitted from digital devices can disrupt the body's natural circadian rhythm by tricking it into thinking it’s still daytime, making it difficult to fall asleep and ultimately reducing sleep quality. It also helps with the timing of the body’s internal clock ( circadian rhythms), as defined by the National Institutes of Health. Melatonin is a hormone that the brain produces in response to darkness to help promote feelings of sleepiness. “The blue light from electronic devices doesn’t harm your eyes, but blue light can interfere with sleep because it can disrupt melatonin secretion,” Boxer Wachler said. While enhanced alertness is helpful during the work day, excessive screen use before bed could disrupt sleep quality. For instance, a 2022 systematic review found that athletes who were exposed to blue light experienced some benefits, such as better cognitive performance, enhanced alertness and improved reaction time. In fact, evidence suggests that there are benefits to blue-light exposure. The latest information from the AAO says current evidence shows no meaningful link between blue light and damage to human retinas and age-related macular degeneration. While research is ongoing, a scientific review - published in a 2022 issue of the journal Heliyon - stated that artificial blue light does not significantly impact ocular health. However, to date, there is no evidence that blue light causes this type of damage to human retinas,” Movsisyan said. “In animal studies, this wavelength has been shown to be toxic to the retina or the back portion of the eye.
and clinical associate professor in practice at The Ohio State University College of Optometry. The blue light portion of the spectrum is considered to have a short wavelength, ranging from 400 to 500 nanometers, explained Tatevik Movsisyan, O.D. However, if you're experiencing any discomfort or eye strain, you should take a break from wearing them.Before answering this question, it’s important to understand how the human eye absorbs blue light.Īs the spectrum of visible light travels, the wavelengths (measured in nanometers) separate and vary in size, which result in the different colors. In fact, it's recommended that you wear them as much as possible to reduce the effects of blue light exposure. It's safe to wear blue light glasses every day. Is it OK to wear blue light glasses everyday? So if you're looking for a way to reduce the effects of blue light exposure, blue light glasses may be the perfect solution. They can help reduce eye strain, headaches, and sleeping difficulty. What are benefits of blue light glasses?īlue light blocking glasses are a great way to protect your eyes from the harmful effects of blue light. Usually, blue light lenses have a slightly yellow tint to counterbalance the blue light, but you are unlikely to notice this. This is done by filtering blue light rays to help prevent them from entering your eye and causing potential damage.
How do blue light blocking glasses work?īlue light glasses are specifically designed to reduce the amount of blue light that reaches the eye from computers or somewhere else.
However, some experts have suggested that too much exposure to blue light has the potential to damage the light-sensitive cells in the retina.
BLUE LENS GLASSES FULL
At the moment, the scientific community hasn’t reached a full conclusion on how blue light affects the eyes since more research needs to be done. This means that almost all visible blue light rays can pass through the cornea and lens to the retina. FAQ About Blue Light Glasses How does blue light affect us?īlue light has a short wavelength making it easy for it to penetrate the eyes.
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