Contact lenses are a convenient way to correct your vision, but getting the right fit is crucial for both comfort and eye health. One of the most important measurements on your contact lens prescription is the base curve, or BC.
So, what does BC mean on contact lenses? The base curve refers to the back curvature of the lens, measured in millimeters (mm). It’s vital for ensuring the lens properly fits the curve of your cornea.
This article will explain everything you need to know about BC, why it matters for comfort and vision, and how to make sure your contact lenses fit just right.