Who is at risk from Blue Light?

 4 min read

Research inquiry done on artificial blue light show that it is harmful to the eyes. Artificial blue light is emitted from devices such as tablets, laptops, TVs, and phones. Some people believe that exposure to blue light will cause insomnia, tiredness, and headaches. With a huge chunk of us spending most of our time in front of such gadgets, it is vital to learn what it is, how harmful it is, and if the effects are similar across all people or others are at more risk from its effects.

Natural light vs. blue light

When the sun is in a visible range between sunrise and sunset, it emits white light, which is composed of both visible and invisible rays. We do know these rays are made of green, yellow, orange, red, and blue light even though we cannot see them (unless in the cases of a rainbow). All of these waves emit a certain amount of energy with blue light recording the highest energy level.

Humans are susceptible to this light, and we absorb it through our eyes and skin, which is a good and bad thing. It is a good thing because the blue light from the sun helps keep us focused and alert as we go on our daily activities to prepare us for sleep as night approaches. It is a bad thing because the artificial light emitted from your computer, TV, tablet, and smartphone has some risks associated with it.

Operating a computer for over eight hours is a significant amount to cause digital eye strain in most office workers. Digital eye strain or computer vision syndrome (CVS) is a form of discomfort that is experienced in the eyes that arise from staring at a computer screen all day. This will often lead to blurred vision, sore eyes, and regular headaches. It is even surprising to see that most employees will suffer from this condition without realizing it.

Imagine this scenario: since you have had a long day, you have decided to jump to bed early so that you wake up fresh for the next day. You are in bed, lights closed, and just before you resolve to sleep, you decide to look at your phone for any notifications. However, you do not put it down immediately, and you are likely to find yourself scrolling three hours into your night. We are mostly induced to check our channels in bed but end up destroying our body clocks (circadian rhythm).

There are several benefits associated with sunlight. It keeps you awake during the day, and as nightfall enters, the brain is signaled to release melatonin, which is a sleeping hormone. Exposing your eyes to blue light confuses the body, leading to a reduction of the melatonin levels. As technology advances, the number of digital devices is expected to increase. Additionally, they are useful to us in various ways. This will ensure that most of us become more absorbed into the consumption of digital devices; however, there are many ways we can use to counter the negative health effects of blue light. For example, investing in a pair of blue-light filtering glasses.

Focucci's lenses are engineered specifically to protect your eyes by reducing blue light levels, and we have frames to suit all face shapes.