All of the letters and numbers on eye prescriptions can be confusing. Check out our handy guide for OD, OS, and many other eye abbreviations.
OD vs. OS: How to Read Your Eyeglass Prescription
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How to Read Eye Prescriptions: OD & OS Vision Chart
What does OS, OU and OD mean on an eyeglass prescription? - Quora
How to read your eyeglasses prescription
OD vs OS: Eye Prescription Explained
How to read your eyeglass prescription