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How to Read a Prescription

Reading your eyeglass prescription is an important step in buying glasses online. While it may seem confusing at first, understanding your prescription does not require a medical degree. Keep reading to find out how to read your prescription!

Typically, your prescription should look something like this:

Sphere

Cylinder

Axis

Prism

Add

Right (OD)

Left (OS)

PD

§ Right (OD): Right Eye

§ Left (OS): Left Eye

§ Sphere: Main Rx Strength

§ Cylinder and Axis: Indicators of Astigmatism

§ Add: For Bifocal/Progressive Lenses

§ PD: Pupillary Distance, the distance between pupils

These prescriptions are for individuals who have difficulty seeing either near or far. There will be no value in the “Add” column.

Sample Prescription

Sphere

Cylinder

Axis

Prism

Add

Right (OD)

-1.75

-0.40

60

Left (OS)

-1.60

PD

61

If you have any questions about your prescription, feel free to reach out to our staff!


Progressive / Bifocal Vision Lens Prescriptions

If you have a value in Prism or Add column of your prescription, you probably need progressive or bifocal lenses. We are currently not offering these lenses. The reason for this is that in order to fix these lenses into frame correctly, requires a special measurements, which can't be done online. Please contact our staff, if you need these lenses anyway, and we can try to accommodate your need or explain alternatives. Majority of people prefer single vision glasses for computer use, and we can explain how to find the correct number