Read this tip to make your life smarter, better, faster and wiser. LifeTips is the place to go when you need to know about Contact Lens Prescriptions and other Contact Lens topics.
Base Curve, or BC, values range from about 8.0 to 9.5. The doctor fits the lens with the curvature most appropriate for your eye. Most disposable contact lenses come in several different base curve values. If your prescription does not contain a base curve value, this is likely because your brand of lens only comes in one base curve.
base curve values are a bit like clothes sizes - just because you are a base curve 8.6 in one brand of contact lenses doesn't mean you will be in another.
This does help, but does that mean that I can change the brand of contacts I'am using even though the base curve is different?
Yes, you can, but it is better to do so with a doctors advice.
i wear a contact with a 8.4 base curve can i also wear one with 8.6?