These glasses allow you to read while lying down- without having to hold your book up or tilt your head. It makes reading in bed super relaxing! Designed for extremely lazy people who love reading, the Lazy Readers use intergrated mirrors to project the text from the book in your lap directly to your line of vision – even if you’re facing straight ahead! Note: Please do not wear these glasses for prolonged periods. Always remove them before falling asleep. Not designed for use when walking as they can be disorienting.