Prism Glasses, Prism Eye Glasses or Bed Prism Spectacles, lazy glasses. Product FeaturesImagine being able to enjoy your favorite magazine, book or TV program while lying in bed. Don't let the unusual look of these glasses hide their true value.The lenses on these lightweight glasses are prisms that change the normal line of sight without any distortion.You can be flat on your back and still enjoy reading and TV as though the image was straight ahead.They work well over prescription glasses too (we even tested them with bifocals!)No more neck strain, just easy viewing.