Why should we protect our eyes from sunlight?

Sunlight contains ultraviolet (UV) radiation, which is divided into three types:

·      UVA Rays: These are the longest UV rays and can penetrate deep into the skin and eyes. They are responsible for skin aging and can also contribute to the formation of cataracts and macular degeneration over time.

·     UVB Rays: These rays are responsible for sunburns. They affect the outer layers of the skin and can also cause damage to the eyes, increasing the risk of conditions like photokeratitis (sunburn of the cornea) and cataracts.

·      UVC Rays: The most dangerous type of UV radiation, but fortunately, these are absorbed by the Earth's ozone layer and do not typically reach the surface.

Consequences of UV Exposure:

Extended exposure to UVA and UVB rays can have several harmful effects on your eyes:

·       Cataracts: Prolonged UV exposure can accelerate the clouding of the lens in your eye, leading to cataracts, which can impair vision and require surgery for correction.

·       Macular Degeneration: UV rays can damage the macula, the part of the retina responsible for sharp, central vision, leading to age-related macular degeneration.

·       Photokeratitis: Just like a sunburn on your skin, UV radiation can burn the surface of your eyes, causing pain, redness, and temporary vision loss.

·       Increased Risk of Skin Cancer: The skin around your eyes is highly sensitive and vulnerable to UV radiation, increasing the risk of developing skin cancers near the eyes, such as basal cell carcinoma.

Does UV radiation weaken on cloudy days or during the cool seasons？

UV radiation can still be harmful on cloudy days or during cool seasons, though it may appear weaker. Here's why:

·     Clouds: While clouds can block some UV rays, they do not completely block them. Up to 80% of UV rays can pass through clouds, so you may still be exposed to harmful radiation even when the sky is overcast.

·      Cool Seasons: UV radiation is not dependent on temperature. Even during cooler months, UV rays can be strong, especially when reflected off surfaces like snow or water. In fact, snow can reflect up to 80% of UV radiation, which can increase exposure.

Therefore, it’s essential to protect your eyes from UV radiation year-round, even on cloudy days or in cooler weather.

Why are polarized lenses a better choice as sunglasses?

Here are a few more points to expand on why polarized lenses are a better choice for sunglasses:

·     Improved Safety: By reducing glare, polarized lenses improve visibility, especially while driving or participating in outdoor activities, making it easier to spot obstacles or changes in terrain. This can help prevent accidents and improve overall safety.

·     Less Eye Fatigue: Glare can cause eye strain and discomfort over time. Polarized lenses reduce this strain, helping you stay comfortable for longer periods, whether you're outdoors, at the beach, or on a road trip.

·     Enhanced Colors and Depth Perception: Polarized lenses can make colors appear more vivid and provide better contrast, making your surroundings look clearer and more defined. This can enhance your outdoor experiences, from nature walks to sporting events.

·     UV Protection: Many polarized lenses are also designed with UV protection, blocking both UVA and UVB rays. This offers additional protection from the harmful effects of the sun, such as premature aging of the skin around your eyes and the risk of cataracts.

·     Stylish and Functional: Besides the functional benefits, polarized lenses come in various stylish designs, making them a fashionable choice that also meets your performance needs.

These additional advantages make polarized lenses a top choice for sunglasses, offering both functionality and comfort for a wide range of activities.

How does quick swap work?

Just two simple steps to go:

       ·     Detach. Grip both the top and bottom contact points of the lens and gently tilt it outward to remove.

       ·    Attach. Without removing the frame, align the lens close to your face and it will snap into place.

[Please note] For best results, adjust your sunglasses by holding the frame—not the lens edge—to avoid accidentally triggering the quick-swap mechanism.

How do I know if my prescription glasses fit inside Vispana?

Vispana is designed to fit most standard prescription frames.

To check: Your glasses are not oversized, and the lens height is under 52mm,They’ll likely fit just fine.

Will Vispana frames lose their shape over time like most glasses?

Our frames offer a secure fit without the uncomfortable pinching found in many other products. This is made possible by our unique material TR90: a high-performance, eco-friendly bio-based composite from Switzerland, known for being lightweight and resistant to stress cracking and material fatigue.

It reduces carbon footprint during production and offers exceptional durability, flexibility, and shape retention.

Even after long-term use, if slight warping occurs, a bit of pressure in the right spot brings it right back — reliable as ever.

Still have questions?

Contact Us