Studies reveal that blue light is a major cause behind several prevalent eye disorders and conditions. While we can shield our eyes from harmful blue waves using blue light blocking glasses, we need to know more about this devil to be able to protect ourselves effectively.
Why is blue light damaging for the eyes?
Blue light is the fourth part of sunlight’s spectrum consisting of seven colours – Violet, Indigo, Blue, Green, Yellow, Orange, and Red; where violet and indigo form the invisible spectrum and blue light along with the other five colours comprises the visible spectrum. Being the last colour of the visible spectrum, blue light moves with extremely high energy, making itself damaging for the human eyes.
Ways in which blue light affects our eyes
There are several reasons why doctors recommend reading glasses for most of their patients. Here are some diseases/syndromes caused by blue light:
When blue light rays penetrate through the retinal tissues, the energy induces a toxic reaction in the cell contents and gradually damages the retina.
The eye lens can absorb short blue waves to prevent them from reaching the retina. This process results in the production of substances and derivatives which turn the lens yellow, gradually resulting in a cataract.
Dry Eye Syndrome
When we sit in front of a laptop or computer screens for a prolonged time period, we expose ourselves to high-intensity blue waves. This results in CES, also known as Digital Eye Strain. The symptoms include sore, dry, irritated and dry eyes.
Blue light also affects our sleep cycle by altering the production of the sleep hormone, melatonin. When we use the laptop or computer during bedtime, the blue light exposure increases alertness in our brain, thus making us an insomniac.
What can you do to prevent blue light damage?
Wear blue light glasses
Blue light lenses are the latest revolution in the eyewear industry. They are capable of blocking a significant amount of blue waves from entering our eyes. You can look to buy glasses online and choose to get a blue light coating on them for increased protection.
Adjust your computer
Blue light waves travel in a straight line. So, it would help if you tried to adjust your computer to minimise the exposure to these waves. Make sure that the centre of your computer screen is at least two to three inches below your eye level. Also, sit at an adequate distance from your computer.
Limit screen time
When we sit in front of the laptop or computer screen for extended hours, we tend to blink far less than what’s ideal, resulting in dry eyes. Therefore, you must try to minimise your screen time. Take a break and look away from the screen every 20 minutes.
Eat good food
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