You may have heard about blue light. If you ever wonder what blue light rays are and how you can protect your delicate baby blues from the harmful effects?
🌞 Sunlight is the primary source of blue lights. All light is made up of electromagnetic particles that travel in waves. Blue light has a wavelength of between approximately 380nm and 500nm which makes it the shortest, as a result highest-energy wavelength. It can be harmful because it is the brightest visible light that most people are exposed to for long periods of time.
✔️ Here are the top five things you need to know about Blue-light:
It’s everywhere 🪐
While sunlight does contain blue light, there are many other sources that we are exposed to on a daily basis. Sources can be found in any bright white light. It’s also found in the digital screens of electronic devices; TVs, computers, laptops, smart phones and tablets. It can also be found in fluorescent and LED lighting, which are commonly used in office settings.
Eyes сan’t naturally block Blue Light ⛔
Since our eyes are unable to block it, it makes prevention difficult. Especially considering all of the sources that we are exposed to everyday. Prolonged exposure could be cause of retinal damage and lead to macular degeneration – which can lead to vision loss.
Reduces melatonin levels 😴
Overexposure to blue light decreases the levels of melatonin our body produces. Melatonin is an essential hormone that helps us get a good night’s rest so our bodies can repair themselves.
It contributes to digital eye strain 🔎
70% of adults who use media devices regularly have experienced some symptoms of digital eyestrain. Digital eyestrain is a medical condition with serious symptoms that can affect learning and work productivity. Symptoms include blurry vision, difficulty focusing, dry and irritated eyes, headaches and neck and back pain.
If you spend more than 7 hours a day in front of any media device, computer glasses or screen filter with yellow-tinted lenses may increase your comfort and reduce damage to your eyes. 🕶️
Not all blue light is bad 🙌
It does have benefits, so it should not be avoided altogether. It’s important to remember that overexposure to blue light is bad. Sunlight is healthy for us and helps our brains know when it’s time to start winding down and produce melatonin, such as when it gets dark outside.
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