Whether from the fluorescent lights, exposure to the sun, or your smartphone, blue light undoubtedly has an impact on your health. However, there are claims about blue light that go beyond the facts.
Here’s what research says about the effects of blue light on your eyes and brain. While there are positive effects as well, you still need blue light protection, especially from its harsh wavelengths.
1. It causes migraines
Clinical studies support that blue light is harmful to those who are vulnerable to constant migraines and headaches. Researchers found out that a specific neural pathway from the eyes to the brain causes the wavelengths of blue light to make headaches worst.
While this pathway is different from the transmission of vision, exposure to blue light brings discomfort while escalating the headache pain throughout the brain. A blue light filter of about 480 nanometers can also cause photophobia, dizziness, and light sensitivity, which are by-products of nausea and headaches. Cognitive biases in your brain can also be disrupted which can have a wider impact.
2. It leads to eye strains
If your job requires you to look at a computer for most of the day, you are taking in a significant amount of blue light that can cause further harm to your eyes. Meanwhile, excessive use of smartphone devices can also lead to eye fatigue that can turn into a blurry vision and other eye conditions.
Aside from eye strain and computer vision syndrome, blue light from computers may translate to dry eyes, which are common symptoms for other eye disorders. Staying out of a blue light filter for a while can help improve your eye’s health.
3. It negatively affects your sleep
Blue light, or any artificial light for that matter, disrupt sleeping patterns. Those who absorb a significant amount of blue light produce more melatonin, which is the body’s indicator of sleep. Extended viewing of your mobile device before going to sleep makes you feel drowsy while reducing your energy for the next day.
4. It damages the eyes
There is evidence that the ultraviolet component in high-energy blue light can inflict damage to the retina. Absorbing UVA in the blue light filter destroys specific membranes to increase the development of macular degeneration or cataracts. The longer you are exposed to blue light, the higher your chances of developing these eye conditions.
Positive effects of blue light
Despite the adverse effects of blue light, it does bring some benefits as well. Exposure to the right amount of blue light boosts productivity, memory, and alertness. Likewise, the suppression of melatonin makes you feel attentive and awake at work. Blue light therapy can also treat certain conditions, such as concussions.
These results, however, came from clinical studies wherein there was control over the blue light’s wavelength. It’s impossible to regulate sunlight and artificial light to achieve positive effects from a blue light filter.
Blue light protection for your devices
You can deal with blue light by using Ocushield’s medically rated screen protectors for laptops, tablets, and mobile devices. Aside from protecting your eyes and lessening the probability of migraine, it also serves as a tempered glass that protects the vulnerable screens of these devices. It also maintains the colours of the display, as shown on the screen.