Vari+San Reading Glasses Genova 1 diopter are auxiliary glasses that help to facilitate the reading of 1 diopter. 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 diopter correction.Vari+San Genova glasses have a synthetic resin frame with neutral tones and animal print temples.Diopters: 1.