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Blue light is everywhere, causing significant damage to your eyes. It can cause digital eye strain, which affects people of all ages who use digital devices. All forms of digital devices, including smartphones, computer screens, tablet screens, fluorescent and LED light bulbs, emit blue light with higher energy levels and shorter wavelengths.
The shorter wavelengths cause the visible blue light to enter your eyes, pass through the cornea and lens, and reach your retinal cells. Bear in mind that retinal cells communicate with your brain to perform the photo-making function.
However, blue light from digital screens can damage your retinal cells and cause blurry vision, eye strain, fatigue, and even macular degeneration and cataracts. The good news is that blue light gasses can block different wavelengths of blue light, preventing your eyes from getting damaged. That way, you reduce the risk of various eye conditions.
Generally, blue light glasses with transparent lenses block up to 20% of harmful blue light wavelengths. However, investing in blue light glasses with yellow, orange, or amber tints will block more blue light. Some studies show that orange-tinted lenses can block over 95% of blue light.
How much Blue Light Blocking is enough?
Researchers and scientists have not established a standard about the amount of blue light that can harm your eyes. However, numerous studies have confirmed that blue light can damage your eyes, primarily if you use your digital devices for a prolonged period.
The best to protect your eyes from higher energy blue light wavelengths is by wearing blue light glasses. If you purchase blue light glasses with clear lenses, they can block up to 20% blue light. Researchers believe that blocking 20% of blue light is not enough.
On the other hand, blue light glasses with yellow or orange-tinted lenses are highly effective because they can block 95% to 100% of blue light depending on the brand and quality of the material. Therefore, we recommend consulting your eye doctor and seek help regarding high-quality blue light glasses
That way, you can choose high-quality blue light glasses and reduce glare and increase contrast when using digital devices. Increased contrast and reduced glare are directly proportional to healthy eyes.
Blue light has different wavelengths ranging between 400nm to 450nm with higher energy levels. Remember, this range is the most harmful, meaning you must purchase and use blue light glasses that can block this specific wavelength range.
How to Test Your Blue Light Glasses?
There are numerous ways to test your blue light glasses. For example, you can find multiple tools and applications online that enable you to test your glasses and find out whether your blue light glasses can block nearly 100% of the harmful wavelengths emitting from your digital devices. Here are a few methods or techniques to test your glasses.
Use a Spectrophotometer
The best way to test your blue light glasses is by using an instrument called a visible spectrometer or spectrophotometer. It is a tool used in laboratories, allowing the user to split light from a full spectrum to different wavelengths.
Take your glasses to a professional eyewear specialist who has all the necessary tools to test your glasses. The specialist will follow a step-by-step approach to test your blue light glasses.
After splitting the full-spectrum visible light, the specialist will place an optical sample or a lens in the machine and use the spectrometer to determine and detect the amount of radiation blocked by the lens.
If you have enough money, you can buy a quality spectrometer to test your glasses. However, we don’t recommend this because testing your blue light glasses is usually a one-time job, and you may rarely need the spectrophotometer in the future. That’s why it is better to take your glasses to an eyewear specialist or your eye doctor.
Perform the RGB Color Test
RGB stands for Red, Blue, and Green Color. The test requires you to see the red, green, and blue color chart with a light blue ring on the inside and a dark blue ring on the outside. Wear your glasses with orange, yellow, or red-tinted lenses and stare at the chart. If the blue circles on the inside and outside of the chart disappear, it means you have high-quality glasses with a 100% blue light blocking capability.
Stare at the Flashing Black and Blue Image
There are many tools and applications available online. You can use these applications to test your blue light glasses. For example, each application has different GIF images that flash from one color to another.
So, browse the application and look at the flashing black and blue light. If you only see black through your glasses, it means your blue light glasses have successfully blocked the harmful high-energy wavelengths.
Consult Your Eye Care Doctor
Although you can use different methods to test your blue light glasses, most of them are established as a standard of testing by researchers, scientists, and ophthalmologists. Therefore, it is crucial to consult your eye doctor and seek help with blue light glasses. Your eye doctor has standard testing tools to test the efficiency of your blue light glasses.
Your doctor will also give you advice on buying quality blue light glasses and what brands to look for or compare. That way, you can choose a reputable brand and enjoy the wide range of benefits offered by blue light glasses, such as the reduced risk of digital eye strain, headaches, dry eyes, migraines, stress, depression, insomnia, and even cancer.
Choosing the correct type of blue light glasses is very important because it blocks harmful wavelengths of the visible light emitted from digital screens. So, perform thorough research and find information online or read customers’ reviews about different brands to make an informed decision. Use the techniques given above and consult your eye doctor about buying the best-quality blue light glasses and protecting your investment.