Vari+San Alexandria 3 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 Alexandria glasses have a frame made of synthetic resin and combining the colors white and red.Lenses: spherical premium qualityDiopters: 3