Oakley Latch Sunglasses 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 Convenient latch at the hinge that clips to your shirt All Oakley lenses block 100% of UVA, UVB & UVC rays and harmful blue light up to 400 nm.