Vari+San Reading Glasses Firenze 3dioptrías 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 diopter correction.Vari+San Firenze glasses have a synthetic resin frame with black tones and spiral temples.Diopters: 3