Eyeglasses prescriptions have unfamiliar abbreviations that can be confusing. Here is a brief summary of some of the terms you may come across on your eyeglasses prescription: OD –Right eye. This is the abbreviation for the Latin termOculus Dexter. OS –Left eye. This is the abbreviation for...
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 ...
OD and OS The terms “OD” and “OS” refer to the Latin abbreviations “oculus dexter” and “oculus sinister,” respectively, which translate to “right eye” and “left eye.” These notations specify the prescription for each eye, considering any differences in visual correction needed...
OD vs. OS: A guide to eye abbreviations OD means both “right eye” and “Doctor of Optometry.” Learn about other common eye abbreviations that are good to know during visits to the eye doctor. Steps that help your doctors determine your diagnosis ...
Prescriptions are full of little abbreviations of other words, and the first two you need to know to understand your prescription is OD and OS. These abbreviations stand for oculus dexter and oculus sinister respectively, which are the Latin terms for your “right eye” and your “left eye.”...
There are other abbreviations on your optometry prescription, such as sphere (SPH), which indicates the strength of the required lens. This strength is measured in diopters (D), calibrated to adjust for nearsightedness or farsightedness. If the number appearing in this column has a negative si...
Abbreviations UCI, University of California Irvine; OC, Orange County; CA, California; IRB, Institutional Review Board; RE, refractive error; OD, oculus dexter; OS, oculus sinister; VA, visual acuity; BCVA, best corrected visual acuity; UCVA, uncorrected visual acuity; logMAR, Logarithm of the...
When looking at your prescription, you'll see numbers listed under the OS & OD; they're abbreviations: OS (oculus sinister) means the left eye and OD (oculus dextrus) means the right eye.
Your eyeglasses prescription is written in a grid using a combination of numbers and abbreviations, many derived from Latin terms pertaining to the eyes. OD = Oculus Dexter, which means “right eye.” OS = Oculus Sinister, which means “left eye.” OU = Oculus Uterque, meaning both eyes....
To help you determine what all this means, here are common eye prescription abbreviations and what they mean: OS (Oculus Sinister): Refers to your right eye. OD (Oculus Dextrus): Refers to your left eye. OU (Oculus Uterque): Refers to both your eyes. D (Diopter): This is represented...