Anti Blue Light Protection

Visible light covers the range from 380 nm to 780 nm and UV light falls just beyond the shorter end of the visible spectrum, so it’s invisible to the human eye.

Blue light, which is part of the visible light spectrum, reaches deeper into the eye and its cumulative effect can cause damage to the retina. Furthermore, in certain wavelengths, blue light is implicated in the development of age-related macular degeneration (AMD).

The amount of exposure to blue light varies, depending on the time of day, the location and the season. The average proportion of blue light that’s found in sunlight during the day is between 25% to 30%. Even on a cloudy day, up to 80% of the sun’s UV rays can pass through the clouds.

Blue light contributes about 90% of the risk of photochemical retinal damage from fluorescent lamps and sunlight, which is why the term “blue light hazard” is used to describe this risk.

When blue light is absorbed by retinal tissue it induces oxidative stress and the causes the formation of indigestible debris which accumulates in the outer retina.

The cumulative effect of chronic, sub-lethal oxidative retinal stress and the accumulation of oxidative debris in the outer retina contributes to the development of AMD.

In ophthalmology, blue light is a high-frequency light in the violet/blue band from 400nm to 500nm in the visible spectrum.

Frequent exposure to it can easily cause macular degeneration, which cause permanent damages that can potentially leas to blindness.

UV rays, which range from 300nm to 400nm, are the leading cause of eye maladies such as cataract.

Study after study has linked working the night shift and exposure to light at night to several types of cancer (breast, prostate), diabetes, heart disease, and obesity. It’s not exactly clear why nighttime light exposure seems to be so bad for us.

But we do know that exposure to light suppresses the secretion of melatonin, a hormone that influences circadian rhythms, and there’s some experimental evidence (it’s very preliminary) that lower melatonin levels might explain the association with cancer.

Even dim light can interfere with a person’s circadian rhythm and melatonin secretion. A mere eight lux – a level of brightness exceeded by most table lamps and about twice that of a night light—has an effect, notes Stephen Lockley, a Harvard sleep researcher.

Light at night is part of the reason so many people don’t get enough sleep, says Lockley, and researchers have linked short sleep to increased risk for depression, as well as diabetes and cardiovascular problems.

Study done by researchers at Harvard University indicates that using smart phones, tablets, or laptops prior to going to sleep throws the body’s biological clock, the circadian rhythm, out of rhythm.

As a result not only does sleep quality suffer but research also shows that it may contribute to the causation of cancer, diabetes, heart disease, and obesity.

Exposure to light suppresses the secretion of melatonin, a hormone that influences circadian rhythms. There is experimental evidence the lower melatonin levels might explain the association with cancer.

Professor Richard Funk, a Famous German ophthalmologist, had his report Blue light can Seriously Threaten Retinal Neurons published by the European Journal of Neuroscience in August 2011.

The report pointed out that continuous exposure of blue light, especially the light of LED lamps, smart phones, and computer screens, which contain large amounts of high-energy shortwave blue light with irregular frequencies will cause vision problems.

For those that already victims of myopia, staring at monitor screen for an extended period of time creates an even higher risk of contract.

Frequent usage of 3C products will increase the aging of your eyes. Through frequent usage of 3C products, for example, by the time you are 30 years old, your eyes resemble that of a 70 year old person.