What Does Bc Stand For Contact Lenses
It also means your contact lenses will be less likely.
What does bc stand for contact lenses. Os stands for ocular sinister the latin term for the left eye. If you see an ou on your label meaning ocular uterque it means the prescription is the same measurement in both eyes. The bc or base curve measurement indicates the back curvature of your contact lens in millimetres. Use this guide to read your contact prescription.
Od or ocular dexter is latin for the right eye. Does that mean 3 pairs of lenses. A lens with a base curve of 8 6 is steeper than a lens with a base curve of 8 9. The prescription may also include how often your contacts should be replaced monthly bi weekly weekly daily to avoid eye damage through infections caused by the buildup of protein calcium lipids and other substances found.
This base curve determines what type of fit is required for the lens to meet the curve of your eye. Air optix aqua multifocal lenses are only manufactured with one base curve and diameter measurement. There are several codes and figures on your contact lens prescription. Power is written as a unit of measurement called a diopter.
What is the base curve bc of contact lens. 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. Different individual have different curvature of their eyes.
This stands for base curve. Although many people s eyes are a globe type of shape there are still unique variations that prohibit contacts from being a one size fits all item. What does each part of your prescription mean. According to the ohio state university medical center although contact lenses are similar to a spectacle prescription contact lens measurements usually have different numbers 1 4 5.
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. Contact lens exams measure your eye surface so that doctors can prescribe a contact fitted for your exact eye shape. The base curve and diameter should be written on your contact lens prescription. Power is the strength of the contact lens the part that magnifies and helps correct vision.
Also your site states 3 lenses per box.