Top 5 Pros and Cons of Blue-Cut Lenses

What Are Blue Cut Lens?

Blue Cut lens helps limit the amount of blue light that reaches your eyes. So if you prefer good sleep and focus, this is a good option. As a unique technical advancement in the eyeglasses industry, blue-cut lenses feature a coating that limits blue light. 

What Is Blue Light?

While many believe that sunlight and artificial light harm our health, most people don't know how sensitive their eyes are. The blue light emitted from electronic devices is believed to be one of the main causes of eye strain and tiredness.

However, unlike some irresponsible sellers, before we pin all the blame on blue light we should bear in mind that Blue light is naturally produced by the sun. In fact sunlight has a much higher proportion of blue light compared to any other artificial source of light.  But the human body, its circadian (sleep-wake) cycle, is designed to function in accordance with the presence or absence of blue light in our environment. 

The perception of blue light is an indication to the body to wake up.  Hence, the blue of the sunlight is essential to awaken us.  It also has a role in our cognitive functions and in regulating our cheery mood.  After sunset, the perceived lack of blue light indicated the pineal gland to produce melatonin that induces sleep.  

Now, with digital devices, we don't really shut off from the blue light after sunset.  Hence, the brain does not get the clear indication to initialise the sleep inducing natural chemical.  This disrupts the sleep cycle.  Also, the quality of sleep due to this exposure to blue light beyond the natural hours is quite poor leading to a fatigued feeling during the day.  As a result, blue light is a leading cause of sleeping issues.

How Does Blue Light Affect Our Sight?

The prolonged exposure to blue light may increase the risk of a retinal disease known as macular degeneration, which, when it worsens with age, leads to blindness in older people.

 Who Needs Blue Light Protection Lenses?

The need for blue light protection lenses is greater when it comes to the following categories of people:

• Professionals – Working professionals are encouraged to use blue light protection lenses to protect their eyes, such as for a 9-5 job that needs you to work on a laptop or PC.

• Gamers – Playing games online for hours can be quite stressful for your eyes, given how much blue light is emitted.

• Binge Watchers – You can spend hours on your favourite TV or mobile device; before you know it, your eyes absorb blue light. It would be best if you were sure you have blue light protection lenses to combat this issue.

• Students – With the increased use of technology in classrooms, students and children have to spend more time studying and revising their lessons using their digital devices. It can make it difficult for them to sleep. Blue light protection lenses can help protect your vision and are often used by students & children.

Anti-fatigue Lenses

You can couple the blue filtering lens material and / or coating with lenses designed to reduce eye-strain.  These lenses have power boosting optical properties that reduce eye-strain caused by long hours of near vision.  Often, people confuse blue filtering lenses with lenses that reduce digital eye -strain.  But in reality, Digital strain reducing mecahnism is different from blue filtering properties.  Ideally these should be combined to give you the best of the two worlds.

Disadvantages Of Blue Cut Lenses

Most people are used to wearing blue-cut lenses. Some people wear them daily to help them see better and increase productivity. However, these lenses come with some disadvantages too.

There is a slightly percivable yellow or off-white tinge to blue light lenses.  Although, more advanced technologies are now available in which the blue-protection is incorporated in the monomer of the lenses itself and you dont need a special coating for the blue light protection.  Yet, for people like grafic designers for whom colour perception is critcal, blue filtering lenses may not be the best option.

How Do I Choose The Right Blue Light Lenses? 

• For Indoor Usage

It seems impossible to get away from blue light, even if you are in your home with all the windows shut for privacy. That is because we spend so much time using electronics and computers indoors. For those who spend the majority of their time indoors, computer glasses can help protect your eyes from extended exposure to blue light and help you relax..

• For The Outdoors

Ultimately, we need to go back to the fact that the blue light generated by the sun is by far the strongest and most likely to harm us, so simply protecting our eyes indoors isn't enough.

For protection, it is necessary to use lens to filter out harmful blue light. It will ensure constant protection for your eyes without affecting your vision.

Clear protective lens that filters blue light are perfect for indoor and outdoor use, making them a convenient solution to harmful blue light.

• For Both Indoor And Outdoors

Another effective method is to use photochromic lenses from the brand Transitions ® that are clear in low light conditions but darken as the light increases. Transitions ® lenses incorporate blue light protection in their basic monomer itself and offer optimal protection from harmful UV rays and blue light from both the sun and from digital devices and house lights.

These glasses are suitable for people of all ages, especially kids under 12 who are more vulnerable to sun damage during their early years. That is because the natural protective barrier in their eyes has yet to develop.

 Where Can I Buy The Best Blue Light-Blocking Lenses In India?

Many eye issues are caused by blue light emitted from computer screens, TVs, smartphones and more. It won't be enough to get a pair of glasses or some anti-glare glasses to protect your eyes.

To find the perfect pair of blue-cut lenses, visit R Kumar Opticians and choose from any of our brands to explore our blue-cut lens offerings. Then, make sure you pick the ideal pair of blue-light lenses that match your unique lifestyle and requirement. 

The Final Word

Wearing blue light lenses for the first few days may feel uncomfortable, but they provide significant protection to people who often have to work at a computer. In addition, you'll find different frame shapes and colours in blue light glasses online and in stores near you. So, grab the best blue light glasses now and see the world through a new pair of eyes!