Vari+San Luca 2.5 glasses are auxiliary glasses that help to facilitate the reading of 2.5 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 Luca glasses have a square metal frame. Lenses: top quality spherical lensesDiopter: 2.5