Dailies Contact Lenses

What do all of the abbreviations on a contact lens prescription stand for?

My contact lens prescription reads: "D -5.50 BC 8.6 DIA 14.2" I know the D-5.50 stands for my vision. I figured DIA stands for Diameter, and I'm not sure what BC stands for. Can anyone tell me?

Public Comments

1. 8.6 and 14.2 refer to the size of the lens... what you need for a proper fit. -5.50 refers to the strength of the lens... what you need to correct your vision.
2. BC is base curve, or radius (in millimeters). Refers to the curvature of the eye lens. DIA is diameter of the lens