Your eyes need several days to adjust to a new prescription. The best way to start using new glasses is when you wake up, with your eyes completely rested. In the case of varifocal lenses, it can take up to a week for the eye to adapt. In case you don't adapt to the lenses, the period to change lenses is 30 days for single vision lenses and 60 days for varifocal lenses. To review the prescription again, you can contact us through WhatsApp or book an appointment through the following link.