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Glasses Prescription, Simplified

Knowing how to read an eye prescription is crucial because it empowers you to take control of your vision, ensuring that your glasses or sunglasses are tailored to your unique needs. This is why we're here to help.

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However, reading an eye prescription can be puzzling for many people. Let’s simplify the puzzle:
“How to read a prescription?”

How to Read a Glasses Prescription:


FAQs

What is the legal blindness prescription?

If you have a prescription of 2.5 or lower, you will be considered legally blind in the UK. A prescription of 2.5 is equal to 20/200 vision. But in case the vision can be improved with glasses or contact lenses, it won’t be considered as a blind prescription.

The eye axis refers to the location of astigmatism on the cornea, measured between 0 and 180 degrees. A normal eye axis typically indicates no significant astigmatism or a minimal level below 0.50 diopters. Astigmatism above 1.5 diopters usually requires corrective eyewear, while a measurement of zero diopters suggests the absence of this refractive error.

“BVD” in an eye prescription stands for Black Vertex Distance, indicating the space between the back of corrective lenses and the eyes cornea or spectacle plane. It’s usually mentioned in high strength prescriptions.

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