How to read my prescription

Understanding your prescription may seem daunting at first, but fear not—it's simpler than it appears. Let's break down the key elements to help you decipher the information with ease.

1. Right and Left Eye Values:

Your prescription contains essential information for both eyes. The right eye is denoted by "R," and the left eye is represented by "L."

2. SPH (Sphere):

The SPH value indicates the degree of curvature required for normal vision. A minus sign implies nearsightedness, while a plus sign suggests farsightedness. The higher the value, the greater the correction needed.

3. CYL or ZYL (Cylinders):

Cylinders come into play if you have astigmatism, a condition where the cornea is unevenly shaped, resembling a cylinder.

4. Axis (Ach):

The axis, linked to the cylinder, denotes the angle necessary for correction. It's specified only if you have a noted cylinder on your prescription.

5. ADD (Addition):

ADD is crucial for progressive lenses, indicating the difference between near and far values. If no ADD value is present, progressive lenses cannot be produced.

6. PD (Pupillary Distance):

Pupillary distance is vital for every eyeglass order, ensuring the glasses are centered on your face. Obtain this measurement from your optician, ophthalmologist, or by uploading a photo in your order as explained here : Your pupillary distance.

7. PRI (Prisma):

The prism value corrects issues like strabismus or angular deficiencies.

Tips for Clarity:

Don't let the abbreviations overwhelm you. Remember, a minus sign is for nearsightedness, and a plus sign is for farsightedness.
Higher values indicate a stronger prescription.
If you're unsure about your ADD value or need assistance with your PD, consult our opticians for guidance.

In just a couple of minutes, you'll find yourself navigating your prescription with confidence. For any uncertainties, reach out to our knowledgeable team—we're here to help you see clearly.