With a plethora of advanced lens technologies available, it’s easy to get overwhelmed. This article clarifies common questions surrounding polarized sunglasses.
Understanding Polarized Lenses and Glare
Sunlight typically scatters in many directions because it reflects off uneven surfaces such as asphalt, grass, and trees. However, when sunlight bounces off a smooth, flat, and shiny surface – think of a car hood or a calm lake – the light reflects in a single direction. This creates intense glare that can be distracting, uncomfortable, and even potentially damaging to your eyes.
While all sunglasses are designed to offer UV protection and minimize glare, polarized lenses undergo a special manufacturing process to specifically target and filter out this concentrated glare. They work similarly to a blind or curtain, selectively allowing certain light to pass through while blocking the rest.
Are All Sunglasses Polarized?
No, not all sunglasses are polarized. While all sunglasses aim to protect your eyes from UV rays, polarization is a specific feature. If a pair of sunglasses is polarized, it will be clearly labeled as such. If you don’t see the word “polarized” on the lenses or product description, it likely isn’t.
UV Protection: Is It Universal?
The level of UV protection offered varies among different brands and sunglasses. Some are more effective than others. For instance, all Eagle Eyes polarized sunglasses utilize TriLenium® technology, blocking blue light and 99.9% of harmful UV radiation. Therefore, always check the product specifications for the level of UV protection.
Ideal Uses for Polarized Sunglasses
Polarized lenses are especially beneficial for activities like driving, outdoor exercise, and any water-based activity, including fishing, sailing, and water skiing. They cut glare reflecting from surfaces, enhancing visual clarity and comfort.
Why Polarized Lenses Might Darken Your Vision
Some polarized sunglasses can darken your vision due to the polarization process. However, certain brands, like Eagle Eyes, are designed to enhance contrast and definition without causing excessive darkening.
When Non-Polarized Lenses Excel
Polarized lenses aren’t always the best choice. They can make it difficult to see LCD screens and LED lights. This is why pilots cannot wear polarized sunglasses, as it could interfere with their ability to read instruments in the cockpit.
Generally, non-polarized lenses are preferable for activities involving significant screen time. Eagle Eyes DigiTec™ lenses, for example, are specifically designed to block blue light emitted from digital screens, reducing eye strain and fatigue from prolonged exposure.
Non-polarized lenses are also better suited for low-light conditions and nighttime use. They offer clarity and definition without darkening your vision. Eagle Eyes offers specialized low light glasses and night driving glasses with non-polarized lenses designed to enhance vision and reduce glare from headlights and LED signage.
In Conclusion
Polarized sunglasses offer significant benefits in reducing glare, making them ideal for various outdoor activities. However, they are not always the best option for every situation. Consider your specific needs and activities when choosing between polarized and non-polarized lenses to ensure optimal vision and eye comfort.
