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Understanding Eyeglasses Prescription: An Optometrist’s Guide

Let’s embark on a journey to understand eyeglasses prescriptions. Of course, it might feel overwhelming at first. But put your worries aside. I’m here to guide you through this maze. As a seasoned Buffalo Grove optician, I have the knowledge to break down complex terms into simple language. So, sit back, relax, and let’s unravel the mystery together.

What’s in a Prescription?

A prescription is not a random jumble of numbers. It’s a way for the eye doctor to communicate with the optician. This coded language contains all the information needed to craft your perfect pair of glasses.

Decoding the Terms

There are a few common terms that you will see on all prescriptions. These include:

It might sound technical, but trust me, it’s not as complex as it seems.

Interpreting the Numbers

The numbers in the prescription indicate how much power is needed to correct your vision. The higher the number, the stronger the prescription. A ‘+’ sign indicates you’re farsighted, while a ‘-‘ sign indicates you’re nearsighted.

Understanding the Add-Ons

Some prescriptions might have additional terms like CYL or AXIS. These pertain to astigmatism, a condition where your cornea is shaped more like a football than a basketball.

Now What?

Now that we’ve deciphered the terms and numbers in your prescription, you’re ready to choose your glasses. You have the information you need to make an informed choice.

A Practical Comparison Table

Here’s a simple comparison table to help visualize the differences:

TERM LATIN NAME DESCRIPTION
OD Oculus Dexter Right Eye
OS Oculus Sinister Left Eye
SPH N/A Lens Power

Prescriptions don’t have to be a mystery. With a bit of knowledge, you can confidently navigate your eyewear choices.

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