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Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.
The cornea is located at the front of the eyeball and serves as the initial point where light enters the eye. Blue light exposure to the cornea increases the production of reactive oxygen species (ROS), [9] molecules in corneal epithelial cells.
In humans, a lower intensity short wavelength (blue/violet) light appears to be equally effective as a higher intensity of white light. [11] Exposure to monochromatic light at the wavelengths of 460 nm and 550 nm on two control groups yielded results showing decreased sleepiness at 460 nm tested over two groups and a control group. Additionally ...
Excessive blue light can cause accelerated aging in flies because this exposure can cause cellular damage, according to a study released Wednesday.
Because blue light is higher energy than other colors, it has been postulated that blue light exposure may cause retinal injury and lead to AMD, Dr. See says. "When researchers have studied this ...
In fact, a 2022 meta-analysis of 36 studies on blue light exposure and sleep found that people felt less tired after blue light exposure in 50% of the studies, and 33% of the studies found that ...
The light screens emit are in a similar spectrum of sunlight, but the blue light emission is what human circadian rhythms are most sensitive to. Studies have shown that the blue wavelengths are closely correlated to those from sunlight, which is what helps the body keep in sync with the sunrise and sunset.
Even though sunlight is the primary source of blue light, our excessive digital diets have made people wary of their levels of blue light exposure. But new research says the suggested benefits of ...