Do Blue Light Blocking Glasses Help?
If you are a photographer, then you might have come across the term “blue light blocking“. This term is often used in advertisements of eyeglasses that can offer 100% protection against blue light from your digital camera. It is an innovation of an ordinary pair of sunglasses to offer protection from sunlight. However, why are digital cameras blue light blocking?
A common question that comes up
is how the eyeglass lens protects your eyes when you are exposed to harmful blue light rays. Blue light blocking glasses possess specially designed lenses that are said to prevent or block the blue light rays coming from digital cameras. The special lenses can help to reduce possible damage to your eyes caused by prolonged exposure to blue light rays and prevent glare from damaging surfaces like roads. They are also useful to some photographers who do not want their eyes to be strained by a long exposure time to direct sunlight. These eyeglasses also help to improve color accuracy and clarity even if you are not working under direct sunlight.
These glasses are capable of blocking a complete spectrum of light.
Hence, they protect your eyes from green, yellow and red light rays. However, these glasses can only help to filter out a portion of the entire spectrum. Hence, they do not provide complete protection from ultraviolet rays. Hence, they are better than sunglasses in blocking most of the harmful ultraviolet rays.
How do Gunnar glasses work?
Simply, Gunnar glasses use a combination of special curved lenses and mirror-glass which reflect the entire spectrum of light and prevent glare from damaging surfaces. Hence, the gunner glasses will not only help you to see better but will also prevent harmful effects from vision problems like cataracts or macular degeneration. However, even with the combination of special curved lenses and mirror-glass, it is not capable of filtering out all the harmful ultraviolet rays. So, it is advised that you should not use this pair of eyeglasses when you are under some kind of environmental stress, because they will not be capable of filtering out all the rays of the sun.
In addition, Gunnar glasses are not capable of blocking out
high-intensity rays of the sun. Hence, they cannot help you to view the blue light on cloudy days. These glasses are commonly used by people working under harsh sunlight at their workplace. Such people have to wear protective sunglasses to protect their eyes from the harmful UV rays of the sun. However, the use of Gunnar glasses will help you to view blue light just like other ordinary sunglasses. It is because this pair of eyeglasses perfectly filter out all the harmful ultraviolet rays.
However, to buy a pair of eye strain prevention glasses
you need to understand the difference between normal sunglasses and Gunnar glasses. Both glasses can provide the same level of protection to your eyes. However, the difference between them lies in the fact that the normal ones cannot filter much of the UV rays while the Gunnar glasses are capable of blocking most of these UV rays. So, if you want to buy eye strain prevention glasses to help you to fight off eye strain, you should make sure that you are using the appropriate pair of eyeglasses that will help you to prevent the harmful effects of blue light. As mentioned earlier, there are various types of eye strain glasses available in the market today.