Have you noticed that more and more people are wearing glasses? Sometimes, even people who are not nearsighted or have any vision problems wear them. Blue light filter glasses have a lot to do with this. Let's see what they are and how they benefit our visual health.
Features of blue light filter glasses:
- They block blue light rays from reaching the eye.
- They can be any prescription glasses, with any frame and design.
- They are compatible with other treatments, such as anti-reflective coating.
- They are compatible with lenses with single-vision distance, near, progressive prescriptions, and any prescription strength.
Functions of blue light glasses:
The main function and advantage of these lenses is that they protect the eye from blue light exposure.
What is blue light?
Blue light is a part of visible light, the light the eye can perceive, which is emitted at different wavelengths. Artificial light sources emit the most harmful blue light wavelengths for the retina.
The percentage of blue light emitted by electronic devices such as mobile phones, tablets, computers, or televisions is much higher than the percentage of blue light emitted by natural sources. To a lesser extent, another artificial source of blue light that harms our vision is fluorescent tubes, used in many workplaces.
For this reason, wearing glasses with blue light treatment blocks the entry of these harmful rays and protects our retina during long hours of device use.
Main problems caused by blue light:
- Eye strain and visual stress. It affects 1 in 7 people. It manifests as red, dry, tired eyes, headaches, a gritty feeling when closing the eyes… This happens when we spend more than two consecutive hours in front of screens, so the use of these lenses and intermittent breaks is recommended.
- Disruption of circadian rhythms, or in other words, sleep disruption. This happens because blue light reduces the synthesis of melatonin, the hormone responsible for sleep. When using screens before sleeping, our brain interprets it as daytime and delays the onset of sleep.
- Age-Related Macular Degeneration (AMD). This is the most serious and severe problem. It is a disorder of the retina that prevents detailed vision, even reading.
Taking care of our vision when using electronic devices is necessary to prevent significant visual problems. It is not necessary to be nearsighted to protect your eyes with blue light glasses.
