Decoding the shorthand of your vision correction
In short: Your glasses prescription is more than a string of numbers; it is a specific map of your eye's unique requirements. This video breaks down the technical abbreviations to help you understand exactly how your lenses work.
The video explains the three primary components of a spectacle prescription: Sphere (SPH), Cylinder (CYL), and Axis. SPH measures the overall strength of the lens needed to correct nearsightedness or farsightedness. CYL and Axis work together to address astigmatism, with CYL indicating the degree of the condition and Axis identifying its specific orientation.
Understanding these values empowers patients to make informed choices when purchasing eyewear and provides a clearer basis for discussions with optometrists about vision needs.
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Sources
- Summary by Intellect · source: Glasses Prescription Explained - How to read your prescription for glasses
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