When you look at your prescription for eyeglasses, you will see numbers listed under the headings of OS and OD. https://jainclinic.in/refraction-and-glass-prescription.htmlThey are
Latin abbreviations: OS (oculus sinister) means the left eye and OD (oculus dextrous) means the right eye. ... Diopter is often abbreviated "D."
Latin abbreviations: OS (oculus sinister) means the left eye and OD (oculus dextrous) means the right eye. ... Diopter is often abbreviated "D."
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