What does a prescription with SPH=plano, CYL=-0.25, and AXIS=90 on both eyes mean?
It means your
glasses are as close to plain window glass as it is possible to be. If these
glasses were prescribed for protection from strong light (tinted) or if this
was part of a progressive glasses Rx (with a bifocal section at the bottom for
reading), this might make sense. If they were prescribed to improve your visual
acuity and nothing more, it is possible the optician just needed to make a
sale.
