Instant, independent focus control Simply turn the dial to adjust the lenses. You can set the prescription and magnification in each eye independently for fast, precise focus. Durable and versatile Easy to use for reading, watching TV, day or night driving, or as backup spectacles. Built for reliable daily use in a variety of situations. Universal fit and strong materials Designed to fit a wide range of users. The lenses are impact resistant polycarbonate and adjustable for near or far sighted needs. Lightweight and portable Lightweight and easy to carry. Store in your bag with little added weight for onthego convenience. Practical use scenarios Reading at a desk or in bed: clear near vision without swapping eyewear. Watching TV or using a computer: adjust magnification for comfortable viewing distance. Driving or traveling: quick focus adjustments for road signs and dashboard visibility; can serve as backup spectacles when needed.