Use this guide to read your contact prescription.
What does bc stand for when ordering contact lenses.
It also means your contact lenses will be less likely.
Written by scott frothingham on november 12 2018.
And because we re sticklers for healthy vision we can t process your contact lens order without one.
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.
This base curve determines what type of fit is required for the lens to meet the curve of your eye.
Many factors affect the size of a lens including the prescription and the diameter size across the lens so a base curve in one type of lens may be slightly different in another type or brand of contact 1.
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.
Os stands for ocular sinister the latin term for the left eye.
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.
Why your contact lens prescription is important.
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.
If you see an ou on your label meaning ocular uterque it means the prescription is the same measurement in both eyes.
This stands for base curve.
It s the back curvature of your contact lens which is measured in millimeters.
What is the base curve bc of contact lens.
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.
Different individual have different curvature of their eyes.
What does each part of your prescription mean.
A lens with a base curve of 8 6 is steeper than a lens with a base curve of 8 9.