These are non-prescription Zoff glasses I bought a few years ago. They're larger than regular glasses and have a stylish design that makes them a great accent to any outfit, which I loved. I'm selling them because my style has changed. The lenses are Zoff's original yellow light lenses (currently: high-contrast lenses). They reduce glare while maintaining brightness, enhancing contrast to make your vision clearer. They're effective for night driving, twilight, and reducing glare from PCs and smartphones, and they also cut 100% of UV rays. Blue light lenses are blue in color and convenient for PC work, but not very practical outdoors. However, these lenses are great for both. (If you're interested, please check the Zoff website for more details.) The lenses are expensive, so I'm listing them at this price.