A Breakdown of Common Terms Like OD, OS, Sphere, and Cylinder If you've ever looked at your eye prescription and felt like you were reading another language, you're not alone! Those abbreviations and numbers can seem confusing at first, but they hold the key to understanding your vision needs. At Eyecare First, we believe in educating our patients, so they feel confident about their vision. Let's break down the most common terms you’ll see on your prescription. OD vs. OS:…
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