Vari+San Milano 3 diopter Reading Glasses are auxiliary glasses that help to facilitate the reading of 3 diopters. These glasses are suitable for people with presbyopia or eyestrain without astigmatism, they have a magnifying effect to facilitate vision. In order to avoid the symptoms of eyestrain, it is advisable to use glasses that allow correction of diopters.Vari+San Milano glasses have a synthetic resin frame with gray and green tones.Diopters: 3