These Multi focus Reading Glasses include three strengths within one pair of reading glasses. You’ll be able to read, view your computer monitor and look at far distances, all without having to take off your reading glasses.  Using these Progressive reading glasses is simple as could be! Select your normal reading magnification power (eg. +1.50 or +2.50), which will be viewed through the lowest section of the lens as you look through the lens. the strength level will decrease as your eyes move upward.  These invisible trifocal readers feature a special coding which blocks out Blue light rays from your computer or any electronics. This reduces eye fatigue which cause blurred vision, watery red eyes.   

The outcome: ideal viewing experience for both working at the computer and looking across the room.