If you are not familiar with a retinal disease called age related macular degeneration (AMD), you may not know about the importance of protecting your eyes from the damage caused by blue light. This color light is especially damaging to the retina. Their wavelengths are from 400-500 nanometers and are the waves that give the sky its blue color.
The retina is very vulnerable to free radical damage because of its frequent exposure to ultra-violet light and to blue light. Free radical damage leads to aging and degenerative diseases like macular degeneration. There are several factors that increase a person’s risk of developing the loss of central vision and sharp, detailed vision due to AMD. Exposure to sunlight and blue light is one of them. A person can reduce or delay their chances of developing AMD by protecting their eyes with sunglasses that use a blue blocker lens or have a blue light filter. These lens will have an orange or amber tint.
Other advantages of these sunglasses are:
1. Increased Visibility
Most sunglasses have a dark lens so that things appear darker and makes it harder to see for someone with macular degeneration. These glasses do not make “the world” appear darker. This kind of lens lets in more light which helps with better visibility when outside.
2. Reduced Glare
Blue blockers not only block blue light, they also block glare. Most people with AMD are very sensitive to glare and appreciate these sunglasses for this reason as much as they do for blocking blue light.
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