Especificaciones:
Dioptrías (△):
(VB15) 1, 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30
(HB16) 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, 45