How to Read a Glasses Prescription: A Simple Guide for Beginners If you’ve ever looked at your glasses prescription and felt confused by all the numbers and abbreviations, you’re not alone. Many Americans ask the same question after an eye exam: “How do I read my glasses prescription?” Understanding your prescription helps you order glasses confidently—especially if you’re buying online. This guide breaks it down in simple terms so you know exactly what each part means. What Does a Glasses Prescription Look Like? A typical glasses prescription includes several columns and abbreviations, such as: OD OS SPH CYL AXIS ADD PD Each one describes how your lenses should be made to correct your vision. OD and OS: Which Eye Is Which? OD (Oculus Dexter) – Right eye OS (Oculus Sinister) – Left eye OU (Oculus Uterque) – Both eyes These terms come from Latin and are standard in the U.S. and worldwide. SPH (Sphere): Nearsighted or Farsighted SPH shows the main power of your prescription. Negative...
How Much Do Prescription Sunglasses Cost in the United States? Prescription sunglasses are more than just a fashion accessory — they’re an essential investment in eye health, comfort, and everyday convenience. One of the most common questions Americans ask before buying is: “How much do prescription sunglasses actually cost?” The short answer: anywhere from $50 to $500+ , depending on several key factors. Let’s break it down so you can understand what you’re paying for — and how to save money without sacrificing quality. Average Cost of Prescription Sunglasses in the U.S. Here’s a realistic price range most U.S. consumers encounter: Type of Prescription Sunglasses Average Cost Budget / Online Brands $50 – $120 Mid-Range Brands $120 – $250 Designer / Luxury Brands $250 – $500+ The good news? Thanks to online eyewear retailers, high-quality prescription sunglasses are now far more affordable than they were a decade ago. What Affects the Cost of Prescription Sunglasses? Several factors i...