Use the drop down menu provided to fill in the Power, Cylinder, or Axis according to the prescription provided by your doctor. If your contact lens prescription is non-astigmatic or non-presbyopic, you will only need to fill out the Power. You will need to provide valid Prescription to buy contact lenses.

Base Curve (BC) measures the back curvature of your contact lenses. The values commonly run from 8 to 10 mm; the higher the number, the flatter the curvature. For contact lenses with multiple BC, select the BC recommended by your doctor.