The cylindrical number refers to astigmatism in an eye prescription, indicating that the cornea or lens has an irregular shape, causing blurred or distorted vision. It is part of your glasses prescription and is often treated with customized lenses or corrective surgery like LASIK. For detailed insights on eye power types and treatments, you can explore the Patient Guide on Samyak Dri... https://www.samyakdrishti.com/Patient-Guide.php