To see just as well close-up and long distance without having to own several pairs of glasses, these progressive glasses have the solution. They include different corrections in 3 optical regions: a long-distance zone at the top of the lens, a close-up zone at the bottom of the lens, and in the middle a zone which allows continuous intermediate vision between long distance and close-up. Plastic. Correction from + 0.5 to + 3. Dim. 13.5 x 4.5 x 14 cm. Black.