Vari+San Pisa 1 Glasses 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 Pisa glasses have a metal frame with black temples at the end.Diopters: 1