To learn more about each term, refer to the glossary below, where you will find each of the abbreviations and numbers of the glasses prescription explained. Eyeglass prescription numbers Generally speaking, your prescription for vision correction will be represented as a positive or negative number,...
There are many abbreviations used in eye care, and sometimes it can be difficult to interpret what they all mean. Another abbreviation you may see on your prescription is OS. This is the abbreviation forOcular Sinisterand is Latin for “left eye.” In computer terminology, OS can also refer...
OD vs. OS DemystifiedNow that we’ve clarified which eye is OD and which is OS, and introduced you to other commonly used eye abbreviations and terms, we hope you can decode your prescription with ease. All that’s left now is to find your perfect pair of eyeglasses or contacts and ...
Now that you understand those mysterious letters and numbers, you know how to read a glasses prescription! Knowing what they mean will also help you more easily discuss your prescription with your eye care professional. Shop eyeglassesShop prescription sunglasses...
When reading a prescription for eyeglasses or contact lenses, you might have come across the abbreviations OD vs. OS. Understanding the main difference
If you look at your eyeglasses you will see the numbers listed under the Operating System and DND items. These are Latin abbreviations: OS (oculus sinister) means left eye and OD (oculus dextrus) means right eye. Sometimes you will see a notation for OU, which means both eyes are involv...