Computer Eyeglasses Vs Blue Light Blocking Glasses: Digital Eye Strain | @DoctorEyeCareNg - YouTube
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In this video we will learn the differences between Computer Eyeglasses and Blue Light Blocking Glasses, and which one is better for relieving digital eye strain.
If you spend the most part of your day looking at a computer screen, you may consider getting a pair of dedicated eye glasses to protect your eyes from digital eye strain.
But, having to choose from options like Computer Eyeglasses or Blue light Blocking Glasses and Gaming Glasses might be a bit confusing.
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What are computer glasses???
Computer Eyeglasses are a dedicated pair of prescription glasses with magnification power that relieves your eye strain while focusing on your computer screen for a long period of time.
The distance at which you look at your computer screen is usually referred to as an intermediate distance, which is typically 20 - 26 inches or 60 cm, or about an arm's length from your computer screen.
The set magnification in your computer Eyeglasses actually helps to relieve the tension in the muscles inside your eyes as well as the muscles outside your eyes, so they don't have to overwork and become fatigued, from staring at a set distance for a long time.
So, if you experience symptoms like headache, pressure at the ridge of your nose, or at your temple just by your eyes, after staring at your computer screen for a long period of time, then getting a dedicated pair of computer Eyeglasses might relieve your symptoms.
How it works.
Imagine carrying a 10 liters bucket of water and holding it up for a long period of time.
After some time your arm muscles will become tired and fatigued and will ache from holding that much weight for a long time.
Then, lowering the weight from a 10 liters bucket of water to say, a small cup of water, you won't experience any difficulties holding the small cup of water.
And,
That's exactly what computer eyeglasses do for your eye muscles.
What are blue light blocking glasses???
Blue light blocking glasses are about any kind of glasses with some sort of coating or filters that prevent blue lights emitted from your digital devices from entering your eyes.
The blue light from digital devices affects our body's melatonin production by stopping or lowering its production, and that affects our sleep cycle, disrupting our circadian rhythm and our sleep - wake pattern, which is actually the main effect of blue light on humans.
Blue light blocking glasses are usually non prescription eyeglasses - plano lenses.
However, the blue light blocking coating or filter can be applied to prescription glasses - like computer eyeglasses.
In fact, it is recommended for anyone who needs a dedicated pair of computer eyeglasses to get a computer eyeglasses with blue light blocking coating or filters applied to it.
Types of blue light blocking glasses.
-Daytime blue light glasses: usually clear in colour.
-Night time blue light glasses: yellow or amber colour.
Finding the right powers of computer eyeglasses; all you need to do is have your eye power requirement measured out, and a dedicated pair of computer eyeglasses made for you.
Other things your eye professional will consider is the status of your eyes and your eye muscles, and whether you have conditions like astigmatism, presbyopia etc
Otherwise, the right powers for your eyes will generally depend on your age;
Under 40: ~ +0.25D - +0.50D mild
Mid 40s ~ +0.75D - +1.00D moderate
50-60s ~ +1.25D - +1.50D stronger.
NB: these are just rough guides.
You should consider speaking to your eye doctor for the best possible results.
Thank you for watching
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