Researchers are continually releasing studies on the potential harm of blue light. When you stare at a screen all day and into the evening, it can affect your sleep and disrupt your body's natural rhythms. For these reasons, blue light filters are incredibly important.

The reason blue light hurts is purely biological. Sleep is a part of the circadian rhythm, which is the cycle of biological processes that are determined in part by the levels of light and dark exposed to our bodies.


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Microsoft added a blue light-limiting feature to Windows 10 in the Creators Update released in April 2017. Called Night Light, this feature shifts the Windows 10 and 11 display to show warmer colors that reduce the amount of emitted blue light. Turning the feature on is a simple process.

While exposure to natural blue light in the morning is healthy and helps to keep our circadian rhythm in check, overexposure caused by too much screen time can lead to negative side effects to our wellbeing, including headaches, eye strain and fatigue.

With new monitor screens being released, a lot of manufacturers claim "low blue light" settings, but how effective are they really? Most don't make a large enough impact to make a difference. See how Ocushield screen filters compare.

Dhruvin studied extensively the role blue light has in the eyes physiology and circadian rhythms whilst studying to become an optometrist. This allowed him to build the research backed Ocushield products we have today. Alongside this he spent many years working in clinical practice, from hospital practice to community settings where he further developed his clinical skills.

Having learned about the dangers of blue light very early on in 2013 meant, I have been following blue light research closely over the years. The research/knowledge base has increased dramatically compared to what was available in previous years. Now we have epidemiological studies, clinical trials and peer reviewed papers all on how blue light affects our health.

It is now conclusive that blue light emitted from sources such as screens and ambient lighting, can affect three main aspects of our health. Firstly our eyes, by causing eye strain and headaches in the short term but also contributing towards Macular Degeneration in the long-term. Secondly, our sleep by suppressing the hormone melatonin which makes it possible for our bodies to fall asleep. Without the secretion of this hormone, we stay awake essentially. Finally, skin which has come from newer findings. We now know 30 hours of exposure to blue light from smartphone or laptop screens can increase the inflammation level in skin cells by 40%. This means more fine lines and early ageing.

Dr. Nikita Desai is a therapeutic optometrist and has a special interest in ocular disease and low vision. She loves to care for her patients along with educating them about their ocular health.Dr. Desai was born in Toronto, Canada but raised in Savannah, Georgia. She obtained her Doctorate of Optometry from the University of Incarnate Word Rosenberg School of Optometry in San Antonio, Texas. She currently practices in Savannah, Georgia as a primary care and low vision optometrist. Apart from caring for patients, she enjoys spending time with her family and friends - along with traveling. 


Comment on blue light:


Blue light is a type of visible light with a shorter wavelength, making it emit higher energy. Blue light is not only given off by the sun but also by computer screens, smartphones, flat-screen televisions, and anything that has fluorescent and/or LED backlighting (which includes regular light bulbs btw!).

Comment on blue light:


Blue light is a type of visible light with a shorter wavelength, making it emit higher energy. Blue light is not only given off by the sun but also by computer screens, smartphones, flat-screen televisions, and anything that has fluorescent and/or LED backlighting (which includes regular light bulbs btw!).

Cutting the screen filters is not recommended. Attempting this could cause cracking; the sharp edges might lead to significant damage. If you can't find the right size for your device, please email customerservice@ocushield.com and we'll do our best to help.

Glare happens when there is harsh lighting around us, coming from sun-light through a window or a bright artificial light source above or around us. Anti glare computer screen products like Ocushield's can stop glare happening so you can see whats on your monitor, computer, pc or laptop screen without any trouble.

Yes, Ocushield blue light filters also work as a privacy screen for monitors and laptops meaning sneaky people cannot see your screen from the side. As well as this the anti-bacterial, glare and blue light features make it the swiss army knife of screen filters.

There are numerous ways to limit blue light on a pc, from software, physical filters, glasses and dimming the light on the screen it self. With the Ocushield filter you can reduce the blue light without turning your screen orange unlike software which tends to make colours distorted.

Here at Ocushield, we care about your health. That's why we've built a community network of experts in eye care, sleep and blue light to understand the problems fully and find viable solutions to keep us safe and well.


Comment on blue light:


Blue light is a type of visible light with a shorter wavelength, making it emit higher energy. Blue light is not only given off by the sun but also by computer screens, smartphones, flat-screen televisions, and anything that has fluorescent and/or LED backlighting (which includes regular light bulbs btw!).

Sleep has an impact on every single area of our lives, and is the most important behaviour we engage in on a daily basis. Technology usage is another behaviour we take part in on a daily basis, yet it can have deleterious effects upon our sleep. The blue light emitted from electronics tricks our brains into thinking it's daytime. This causes our bodies to decrease the production of melatonin, the sleep hormone, which is the hormone we need to feel sleepy. Ideally, you should turn off all electronics at least one hour before bed, and you should also charge your electronics outside of your bedroom. If you must use electronics before bed for work or school, I always recommend using blue lock blocking products such as those created by Dhruvin Patel of Ocushield. Once you have powered down your electronics, engage in a relaxing bedtime routine in a cool, dark, and quiet bedroom. Having a sleep promoting bedroom environment, a consistent and relaxing sleep routine, and an appropriate and consistent sleep schedule, will keep your circadian rhythm (your sleep/wake cycle) steady, which leads to better sleep. The benefits of healthy sleep are truly endless.

Sleep is a crucial aspect of our physical and mental wellbeing. Not getting enough rest has been linked to cardiovascular disease, diabetes, obesity, infection, inflammatory conditions, mood and mental health risks, car accidents, and issues with memory and cognition. Many people have trouble sleeping at night, often thought to be due to insomnia, when in actuality they have a circadian rhythm disorder known as delayed sleep-wake phase disorder, which can be due in large part to the negative impact of blue light.

f.lux makes your computer screen look like the room you're in, all the time. When the sun sets, it makes your computer look like your indoor lights. In the morning, it makes things look like sunlight again.

When you turn on most digital devices, their screens vibrantly illuminate so that you can see easily in a variety of light settings. However, the visible light that comes from your screen is more complex than you might think.

The simplest blue light definition is a high-intensity, short wavelength range of visible light on the spectrum. Blue light is a high-energy, visible (HEV) light; falling in the same category of visible light as violet.

Blue light is harmful the same way having too much sodium in our diet is harmful. Our bodies are naturally adept at absorbing and dealing with blue light exposure, but like anything else, too much can be detrimental.

Digital eye strain, also known as computer vision syndrome, may lead to dry, sore, red eyes and blurred vision. With enough prolonged exposure, blue light can harm your eyes and lead to macular degeneration - causing damage the same way UV rays would.

The same study also found that green light may be damaging and strenuous on the eyes as well. The typical wavelength of blue light falls between 450 and 490 nanometers. The wavelength for green light is 520 to 560 nanometers, with cyan falling in between. ff782bc1db

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