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Aug 5, 2025 · Wondering if CYL on your eye prescription means you have astigmatism? This quick guide breaks down what CYL means, why it matters, and what to do next.

Apr 18, 2023 · What is the “cylinder (CYL)” number on my prescription? The cylinder number is how much astigmatism you have, if any. This is when part of the cornea has a different curve. …

Oct 28, 2025 · Learn how to read your glasses prescription with this easy guide. Understand eye prescription terms like SPH, CYL and Axis to know your vision needs.

Oct 9, 2024 · Cylinder, abbreviated CYL and diopters in measurement, indicates the lens power you need for astigmatism correction. Astigmatism is an uneven curvature of the eye’s cornea …

When it comes to prescriptions, the cylinder (CYL) and axis values are particularly confusing for many people, especially when ordering contact lenses online. Understanding these values …

Jun 21, 2025 · CYL stands for "Cylinder," and it is a measurement used in eye prescriptions to correct irregularities in the shape of your cornea or lens. Unlike the SPH, which measures your …

Sep 18, 2024 · What does CYL mean on an eye prescription? CYL stands for Cylinder and refers to the dioptric strength required to correct astigmat i sm in either or both of your eyes.

Oct 31, 2025 · “Cyl.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cyl. Accessed 31 Oct. 2025.

Apr 11, 2025 · The CYL number in your prescription indicates the degree of astigmatism—the larger the number, the more significant the correction needed. The CYL value is typically …