How to Read a Glasses Prescription

A glasses prescription contains several values that describe the optical correction needed for each eye. Understanding the basics can make ordering prescription eyeglasses online much less confusing.

Sphere

The sphere value indicates the main correction for nearsightedness or farsightedness. It may be positive or negative depending on the type of correction.

Cylinder and Axis

Cylinder and axis are commonly used when correcting astigmatism. Cylinder describes the amount of astigmatic correction, while axis indicates its orientation.

Add and Other Values

An ADD value may appear for multifocal or progressive prescriptions and relates to additional near correction. Your prescription may include other information depending on your eye-care needs.

Ask When Unsure

Prescription formats can vary. If you are uncertain about any value, confirm it with your eye-care professional rather than guessing.

Once your prescription is clear, browse Wearluxys eyeglasses for frame options. Accurate prescription information helps ensure the right lens configuration.