Your Prescription Guide

Discover the world of eyewear with our comprehensive guide. Learn to read your prescription and choose the perfect eyewear. Clarity awaits.

Crafting Clarity Prescription Guide – Prescription Guide

Beautiful island


Why Prescription Matters

The Key to Clear Vision


Clarity & Comfort

Your prescription is your path to clear, comfortable vision, ensuring perfect eyewear for your needs.


Precision Matters

Precision is paramount when it comes to prescriptions. A small error can affect your vision quality. We’re here to help you get it right.


Tailored Selection

Your prescription is unique to you. It guides us in crafting personalized eyewear that complements your style and enhances your vision.


Explore the Guide

Dive into our Prescription Guide to decode your prescription, measure your pupillary distance, and choose the perfect eyewear for you.

Navigating Your Eyewear Prescription

Identifying SPH, CYL, and Axis Values

Sphere (SPH)

The sphere (SPH) value indicates the main lens power you need to correct nearsightedness (indicated by a minus sign, like -2.50), farsightedness (indicated by a plus sign, like +1.00), or astigmatism (a combination of both, like -1.00 -1.50 x 90°). It represents the degree of correction required to focus light on your retina.

Cylinder (CYL)

The cylinder (CYL) value shows the additional lens power needed to correct astigmatism. It’s noted with a minus or plus sign, just like SPH. For example, if your prescription reads -2.00 -1.50 x 90°, the -1.50 CYL corrects astigmatism.


The axis is measured in degrees from 0° to 180° and indicates the orientation of the cylinder (CYL) correction. It tells the eyewear manufacturer where to place the astigmatism correction on the lens. For instance, in the prescription -2.00 -1.50 x 90°, 90° specifies the horizontal axis.

Pupillary Distance (PD)

Your Pupillary Distance (PD) is the measurement between the centers of your pupils, usually expressed in millimeters (mm). It ensures that the optical centers of your lenses align with your eyes correctly. While your optometrist provides this measurement, you can also measure it at home or request it during an eye exam.

Understanding  “OD” (Right Eye) and “OS” (Left Eye)

Share your wedding moments with your guests

OS (Oculus Sinister)

Refers to your left eye.

OD (Oculus Dexter)

Refers to your right eye.

Measuring Pupillary Distance (PD)

Crafting Clarity Prescription Guide – Prescription Guide

Why is PD Measurement Vital?

A precise PD measurement ensures that you can fully benefit from your prescription lenses. An incorrect PD can lead to discomfort, eye strain, and visual distortion. To achieve the best possible vision with your eyewear, it’s essential to measure your PD accurately.

Crafting Clarity Prescription Guide – Prescription Guide

How to Measure PD at Home

Measuring your PD at home is straightforward. Stand before a mirror with a ruler or PD measurement tool. Hold it horizontally at your brow. Close one eye, align the ruler’s zero point with your left pupil, and have someone record the measurement at your right pupil’s center. Repeat for accuracy.

Crafting Clarity Prescription Guide – Prescription Guide

What is Pupillary Distance (PD)?

Pupillary Distance (PD) measures the distance between your pupils’ centers. It’s a critical factor in ensuring your prescription eyewear offers precise vision correction. An accurate PD guarantees your lens focal point aligns perfectly with your eyes.