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Understanding your prescription

Understanding your prescription

What Is Axis on an Eye Prescription?

Axis is the number between 1 and 180 on your prescription, and it confuses people because it is not a strength at all. It is a direction. Here is what it describes and why it only appears with astigmatism.

August 13, 2026· Vision Rescue

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How to Read Your Eye Prescription
Understanding your prescription

How to Read Your Eye Prescription

OD, OS, SPH, CYL, AXIS, ADD. An eye prescription looks like a code because it more or less is one. Here is what each abbreviation means, and why your glasses prescription is not the same as your contact lens prescription.

prescriptioncontact lenseseyeglasses
8/13/2026· Vision Rescue