Key Takeaways
- Ask for the transmission spectrum before buying blue light glasses.
- Use a blue laser test to compare light blocking performance.
- Check your glasses with trusted blue light filter software.
- A slight yellow tint on screens may indicate blue light filtering.
- Avoid glasses that claim to block 100% of blue light.
- Choose high-quality lenses to reduce digital eye strain and glare.
Blue light glasses are gaining a lot of popularity these days as people are discovering more and more merits of it. The increasing awareness of retinal damage and digital eye strain caused due to prolonged exposure to blue light emitted from devices like smartphones, computers, laptops, tablets, have increased the demand for blue light blockers.
So after all that buzz about blue light blockers, you must have thought of buying blue light glasses but how will you know if your glasses have anti-blue light?
It is unfortunate that many retailers claim to reduce blue light completely and fraudulently sell ineffective glasses. Poor buyers take their word for it. Okay, now blocking all of the blue light will hamper the screen viewing experience and make it uncomfortable. In fact, if the blue light gets completely blocked, the screen will appear red.
So when it comes to testing genuineness of blue light, it can be a real task but can be done quite conveniently.
Here is how you can test your blue light filters:
Request for Transmitter Spectrum
This is something which you need to do right before you buy blue light glasses. You can request for the transmitter segment from the retailer. It is a graph that indicates the percentage of light passing through the blue light blocker as per the wavelength.
The most effective blue light filter can block around 520 nm of blue light while some can block light below 400 to 480 nm. However, the more the glasses block blue light the more colours will distort.
Use Blue Laser
This is another convenient way to check if your glasses block blue light. You can ask any optician for a blue laser.
- Switch on the blue laser and point it on the thick white paper, the blue light will be 100% visible.
- Now keep the glasses in between the laser and white and let the laser light pass through the glasses onto the paper.
- If the visibility reduces, then your glasses are genuine.
- You can also use a normal glass and your blue light filter glass and follow the same experiment above to check and compare.
Test Using Blue Light Filter Software
Another easy way to check the authenticity of your blue light glasses is by testing the glasses using some good blue light filter software. You don’t need any expensive spectrometer test, there are some handy software easily available that can test online your blue light glasses as well as the blue light screen filters.
Put on Your Blue Light Glasses
This is the simplest way to check if the blue light is effective or not. Simply wear your blue light glasses and see them on screen. If the whitish screen appears yellowish then the blue light glasses are kind of working properly. However, this is not a sure-shot way to check the genuineness of blue light glasses.
Most of the blue light glasses are anti-glare and anti-reflective so that it can reduce the strain caused due to the light rich environment. If you want to protect your eyes from the digital devices’ harmful rays and emission, reduce strain and sleep better then opt for high-quality blue light glasses.
FAQs
How can I determine if my blue light glasses are real?
You can examine the transmission spectrum, conduct a blue laser examination, or utilize blue light filtering software. These techniques offer a more accurate assessment than depending on promotional assertions.
Do blue light glasses filter out all blue light?
No. High-quality blue light glasses filter only a segment of blue light. Blocking all blue light can alter screen colors and cause displays to look reddish.
What does a transmission spectrum indicate for blue light glasses?
A transmission spectrum is a chart that illustrates the amount of light that penetrates the lenses across various wavelengths. It aids in grasping how well the lenses block blue light.
Is it possible to try blue light glasses at home?
Certainly. You may examine how a blue laser looks through the lenses or notice if screens appear a bit warmer while wearing the glasses. These techniques provide a general indication but do not serve as laboratory examinations.
Does a yellow hue indicate that blue light glasses are effective?
A soft yellow hue may indicate that certain blue light is being blocked. Yet, this by itself does not validate the lenses’ overall efficiency.
Why shouldn’t blue light glasses completely block all blue light?
Completely eliminating blue light can greatly impact color accuracy and diminish viewing comfort. Efficient lenses strive to combine blue light protection with a natural visual experience.
Do blue light filters and anti-glare coatings serve the same purpose?
No, Anti-reflective coatings minimize reflections on lens surfaces, whereas blue light filters decrease the quantity of blue light that penetrates the lenses. Numerous blue light glasses have both characteristics.
What are the benefits of opting for premium blue light glasses?
Premium lenses are crafted to alleviate digital eye fatigue, lessen glare, and ensure comfortable screen time. They also offer more dependable blue light filtration compared to inferior options.
