OD stands for "oculus dexter" which is Latin for "right eye". The right eye is always listed first on the prescription. This is just a sample prescription.
Does OS stand for right eye?
Step one of understanding the prescription from your eye doctor is knowing OD and OS. These are simply abbreviations for Latin terms: OD is an abbreviation for “oculus dexter” which is Latin for “right eye.” OS is an abbreviation for “oculus sinister” which is Latin for “left eye.”
What is right eye OD and left eye OS?
In fact, the first things you'll notice on your prescription are abbreviations for two Latin terms in the column labeled “Rx.” Oculus dexter (O.D.) translates to “right eye,” while oculus sinister means “left eye.” Your optometrist uses these terms to note the prescription for each eye.
Is OS my left or your left?
DEMYSTIFYING YOUR EYEGLASS PRESCRIPTION Along the left-hand side, you might see these abbreviations. Here is what those abbreviations mean: O.D.- This is oculus dexter, meaning right eye. O.S.- This is oculus sinister, meaning left eye.
Why is left eye called OS?
These are simply abbreviations for Latin terms: OD is an abbreviation for “oculus dexter” which is Latin for “right eye.” OS is an abbreviation for “oculus sinister” which is Latin for “left eye.”