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UV radiation from the sun is one of the most harmful environmental factors affecting eye health. Prolonged exposure can lead to long-term damage such as cataracts and retinal issues.
UV400 protection means the lenses block all light rays with wavelengths up to 400 nanometers, covering both UVA and UVB rays.
This level of protection is essential because:
- UV rays are present even on cloudy days
- Reflection from water, roads, and buildings increases exposure
- Long-term exposure damage is cumulative
High-quality sunglasses should never be judged only by appearance. True protection comes from certified UV filtering, ensuring your eyes remain safe during both daily and high-intensity outdoor activities.
