This stands for base curve.
What does bc stand for when ordering contact lenses.
Base curve bc of contact lens is to general measurement of the back surface of contact lens base curve of disposable soft contact lenses available in the market varies from 8 4 mm to 9 0 mm.
Research suggests that it s important to double check that the contacts you receive are the same ones your doctor prescribed before you wear them.
Os stands for ocular sinister the latin term for the left eye.
What is the base curve bc of contact lens.
You can t get a prescription for contact lenses until your doctor has performed a fitting and evaluated your eyes response to contact lens wear.
And because we re sticklers for healthy vision we can t process your contact lens order without one.
Use this guide to read your contact prescription.
Why your contact lens prescription is important.
Unlike glasses that sit about 12 mm from your eyes contact lenses sit on your eyes making the two prescriptions very important and very different.
It also means your contact lenses will be less likely.
It s the back curvature of your contact lens which is measured in millimeters.
There are several codes and figures on your contact lens prescription.
The bc or base curve measurement indicates the back curvature of your contact lens in millimetres.
Typically a contact prescription contains a brand name lens base curve lens diameter and lens power so you can easily order the right corrective lenses.
What does each part of your prescription mean.
If you see an ou on your label meaning ocular uterque it means the prescription is the same measurement in both eyes.
This is important for comfort as the bc of your contact lenses should match your eye s natural curve as closely as possible to ensure a better fit when you are wearing your contact lenses.
This base curve determines what type of fit is required for the lens to meet the curve of your eye.
Od or ocular dexter is latin for the right eye.
Written by scott frothingham on november 12 2018.