Oakley lenses are designed and tested under extreme high mass and high velocity circumstances to ensure uncompromising protection across a wide range of demanding conditions.Features :Clarity- Conventional lenses can magnify images. HDO precision gives less distorted vision across the entire field of view.With regular lenses, objects arent really where you see them. HDO offers a truer visual image so your brain wont have to work overtime.UV Protection- All Oakley lenses block 100% of UVA, UVB & UVC rays and harmful blue light up to 400 nm.