BLUE LIGHT: What is it?
The light is composed by electromagnetic particles that propagate in the form of waves....
»BLUE LIGHT: What is it?
The light is composed by electromagnetic particles that propagate in the form of waves. These waves emit electromagnetic energy and together they form the electromagnetic spectrum, which extends from the radiation of smaller wavelength, like the cosmic rays, gamma rays and the x-rays, passing through the ultraviolet radiation, the visible light and the Infrared radiation, to the electromagnetic waves of greater wavelength, such as radio waves.
The wavelength is measured in nanometers (nm). The shorter the wavelength, the greater its emitted energy The blue light has a wavelength of about 380 to 500nm, one of the shortest wavelengths, hence, highly energetic. Blue light is everywhere. The main sources of blue light come from both the sun and artificial light. LED technology used for displays of digital devices such as computers, tablets, smartphones, and flat-screen TVs, have their maximum emission at wavelengths corresponding to blue. It has been determined that prolonged exposure to this radiation can cause visual problems, more considering the proximity of these devices to the human eye.
» EFFECTS OF EXPOSURE TO BLUE LIGHT
According to studies, constant exposure to blue light may decrease the production of melatonin, the hormone that regulates the "biological clock." During the day the blue light blocks the release of melatonin, and at night, with the absence of light, there is an increase in its release. Melatonin is the one that tells us when it's time to go to sleep. However, by exposing the eyes to blue light from artificial light and digital devices, release of melatonin will be blocked causing sleep disruption at night. Not enough sleep is a cause of many health problems.
At the visual level, prolonged exposure to digital displays promotes the appearance of computer visual syndrome (SVI) that includes symptoms such as visual fatigue, tearing, headache, among others.
In the long term, the high energy emitted by the blue light coming from digital screens can cause problems in the retina such as macular degeneration and cataracts
How many hours do you spend in front of a digital screen?
» RERECOMENDATIONS FOR AVOIDING COMPUTER VISION SYNDROME (SVI)
❶ Proper lighting:
It is recommended to use settings that reduce the brightness and contrast of digital devices. An environment similar to natural light is the best.
Try to adopt the correct posture when you are in front of the computer.
❸ Light filter:
Use blue light filter on your eyeglasses to block the blue light emitted by digital devices. Your eyes will be protected from electromagnetic radiation when using this protection
❹ Keep your eyes lubricated
Blink constantly to keep your eyes lubricated and prevent dry eye syndrome seco.
» BLUE LIGHT BLOCKER GLASSES
In tuopticaenlinea.com we offer special lenses designed to protect the eyes from harmful light coming from digital devices.
These blue-coated lenses are made of polycarbonate material and have anti-glare treatment that not only improves the passage of light through the material, but also neutralizes the light emitted by such digital devices.
The use of glasses with lenses protection digital displays will help you eliminate the effects of Computer Eye Strain, also know as ComputerVision Syndrome.
If you do not need prescription, you can use your blue light blocker glasses only for protection.