Bc Mean Contact Lenses

Reading number the steeper the curve of your eye.

Bc mean contact lenses.

This base curve determines what type of fit is required for the lens to meet the curve of your eye. A lens with a base curve of 8 6 is steeper than a lens with a base curve of 8 9. Base curve bc of contact lens is to general measurement of the back surface of contact lens. An example of a common base curve would be bc 8 7mm.

Base curve of disposable soft contact lenses available in the market varies from 8 4 mm to 9 0 mm. Use this guide to read your contact prescription. Here s what those abbreviations mean. You ll also need this information if you want to order contact lenses online.

If you realize that you ve gotten contact lenses with an incorrect base curve you may feel it. 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. 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. Oculus sinister the latin term for left eye pwr.

Base curve usually a number between 8 and 10 if your brand only comes in one base curve your prescription will not contain a bc value. The bc or base curve measurement indicates the back curvature of your contact lens in millimetres. The base curve or bc is the radius of the back of the contact lens the part that sits on your eye 3. Both the base curve bc and diameter dia of a contact lens ensures a proper fit on your cornea and total eye surface.

This measurement is usually written in millimeters or sometimes with the words flat median or steep. Different individual have different curvature of their eyes. What happens if the base curve size is wrong. The lower your b c.

Power also referred to as sphere or sph bc. Oculus dexter the latin term for right eye os. Those features ensure comfort and encourage eye health including allowing proper oxygen to the eye.